Has anyone ever had a crush on you?

Yep. From the start of Year 3 right until the end of primary school, there was a girl in my year group who had a crush me. I had feelings for her as well. The funny thing is, we were basically in a de-facto relationship, because we both knew that we had feelings for each other. She actually lives directly behind my house, so we would often go on our trampolines after school and talk to each other over the back fence. 

The girl who lived directly across the road from me was in the same class as us and she also developed feelings for me as well. I had been friends with her since her family moved into the house across the road when I was 8. It wasn't until the start of Year 4 (when I was 10) that she started to have a crush on me. The girl who lives behind my house found out that she had developed feelings for me and they had a massive argument about it, which resulted in them no longer being friends. I felt really guilty about it at the time. There was a point in Year 4 where there were 5 girls who had a crush on me, but I only had feelings for the girl who lives directly behind my house. 

Also, at the beginning of Year 7, there was a girl in my year group who had a crush on me. She went to a different primary school to me, so I didn't know her before the start of High School. During sport on the second week of school, she went up to me and started a conversation with me. That went really well and we started to talk to each other over the next few weeks. I just wanted to be friends with her, but she wanted to go out with me. Her friend would constantly tell me to go on a date with her, which to be honest, did become very annoying after a while. 

In the end, I told her that I would only like to be friends with her and that I simply wasn't ready to enter into a relationship. She took it well and understood where I was coming from, but her friend wasn't happy with me at all. The reason why I said no, was simply because I had only just turned 13 and I was still trying to settle into High School; I just wasn't ready to enter into a relationship at that time. If she had of asked me later on in High School, I would have said yes.

Unfortunately, that never happened, because she asked my best friend out just a few months later and they have been in a relationship ever since. I still remained friends with her (and my best friend) right until the end of High School though and we all sat with each other during our lunch breaks, so that was good.

I'm not aware of anyone who has had a crush on me since. I do remember going to a McDonalds when I was 17 and seeing a 13/14 year old girl who was checking me out, but that's pretty much it.

Edit: Sorry if my post came across as me bragging, as that was never my intention. I just went into detail about what has actually happened.

The only time I knew of a girl liking me was back when I was in 8th grade. She sat next to me in my science class and would always tell me that she loves how cute and awkward I apparently was. I was SO SO SO stupid that I just didn't pick up on any of the signals. Like I also found her attractive and was interested in her,yet for some reason I never made any moves! That was definitely one of the biggest regrets of my life.

I feel you dude, don't beat yourself up for it though, a lot of girls are gonna be into you. 

Not to brag, but too many times, and it wasn't reciprocated because it was always girls crushing on me, and I'm gay :s

The most embarrassing times were once when I was around 7/8, I was at a birthday party, and we were playing Mario Kart 64 battle mode. It's largely based on luck, but I kept on losing. I was visibly upset, and so my friend's older sister gave me a kiss on the cheek to make me feel better, but it only made things worse as everyone erupted in laughter.

Another time was when I was 16. She and her friend were borderline stalkers. She would always hound me down when I was trying to walk home from school or when I was out and about throughout town. It all reached peak embarrassment when she and her friend were asking me too many personal questions and giving me sexual compliments while we were walking on a bridge, and then proceeded to grope me and then hug (more like entrap) me. I was paralyzed and had no idea what to do, and she was blocking all foot traffic on the bridge which only added to the spectacle and my embarrassment. When I finally returned home, I was overwhelmed with feelings of humiliation and being violated. I skipped all my classes for the rest of the day and for the few weeks afterwards, songs about objects of sexual desire or unrequited love (e.g. "You don't know how bad I wanna kiss you") would always trigger me and I'd turn them off, even songs I enjoyed before the incident. I rarely saw them after the incident, thankfully. I think they realized what they did was wrong and wasn't appreciated, and other than still annoyingly saying "hi" and giving me beaming smiles whenever I passed them, they started to leave me alone.

Anyway, those are the only overly embarrassing ones. There are a few others, but they were flattering and boosted my self-confidence rather than embarrassing

Unfortunately no.