Last time that happened I was at an Ikea store inside one of their showroom shower display models getting a blowjob. Just as I came, my knee buckled. I made an awful racket when I went down, too. Took the shower curtain rod down with me. I just barely got my pants back up in time for the nearest store clerk to come over and ask if I was alright. I had made it sound like I tripped. I still shop there.
!!!!
Last night I had been sat in the computer chair for too long, and when I got up my leg just folded under me, dumping me unceremoniously to the floor.
Calf muscle still hurts today.
Stupid body!