Recent botting ventures with no bans:
8 hours, chinning, no breaker.
12 hours, willows, no breaker.
Solution to not getting banned: baby-sit every couple hours. It will take a few minuets of your time, and convince everyone around you that you are "there." I've gone at least 1500+ hours just doing this, and I highly doubt I got reported once. Just don't be an idiot. ;- D