Yeah, I had an incident with a strapless bra once. I was wearing a top with a square neckline and I had to wear a strapless bra in order to not have my bras show. I was at a wedding and was dancing to "Walking on Sunshine" and I kinda... slipped out of my bra. Luckily my top was intact and did not flash anyone, but I did have to go the the restroom and readjust things a bit.