So, when you get an erection, do you feel the urge to take care of it? Or as you put it in the sister thread, do you need to find "an excuse to hit the restrooms and rub one out?"
Really kinda depends on the situation. When guys say it has a mind of its own... they're not lying! That sucker will pop up for seemingly no apparent reason! Sometimes, It's just an annoyance and we ignore it. Other times, we know why we are getting hard and... well... yeah, the little fucker demands some attentions. And yes, at least for me, I have no issue excusing myself to go to the bathroom to rub one out. The issue there is... sometimes you cum a LOT more than expected and make a bigger mess than anticipated.