Do not take chances with online poker. If you know you're 80%+ ahead on the turn then put all your chips in at that point (say you have top set with no possible straight or flush yet...). Sure, most donks will still call you with their 20% chance but what can you do? Any good player will work out they only have 20% chance or less to win and will more than likely fold. This is the only way to be safe from stupid players. Put them all in on the turn and they will be scared like the little bitches they are.