I usually try to stop it at zero but before it beeps. It is a very small window but possible.
I stop it before it's done when I'm hungry! Lol
At work I stop it before its done and leave it bl
At home I wait cos Im too busy to remember I even put anything in there.
Stop it before it's done .. Duh lol
Depends on how impatient I am at the time
Put it back in for another 30 seconds