not sure if someone has suggested this (probably have) but:
please allow players to un-check the "I'm ready" box when the breaks begin.
The other day I got blinded out of a sng because I hit the button but at least one of the remaining 2 opponents didn't. The table said 4 more minutes of break I waited for a minute or so to make sure and decided to go grab some water. Talked to my roommate for only like 3 min in the kitchen and came back to computer to see my stack blinded down from ~3k to like 400
blinds were at 200-400 when i left so they must have clicked "I'm ready" pretty soon after I left LOL. Still sucked tho.