3) Fold flop. They love to donk the flop and its done two ways:

If the donk is half pot or less, you can 3.5x it and theyll fold around 80% of the time. Doubly true when they minbet donk. Thats just a free $0.25 to you.

But if its more than a half pot donk, you're beat, he wants you to raise.