it seems to happen often lol

slowing it down or stopping can help but if you've got there pretty quickly or too far then its a bit too late,for me anyway.

but i think if you're still at the stage of wanting to push your limits then you're probably still alert enough to know you're 'getting there' more cheesy sayings lol if you're at a point where you wouldnt notice you've reached them thats when it's time your Dom would im guessing put a stop to it.