Last week I played doubles with a guy who actually "shook off" my hand signals. That was the first time I've ever had anyone do that. It was a little surprising at first, but I actually liked it. It meant he had a certain type of play in mind and wanted me to play along with his plan.
Over the weekend I played with a guy who never signaled a poach, only stays and fakes (despite telling me he had a signal for a poach) in 3 matches. That's fine, but I felt like shaking off a few of his signals myself
First time I played doubles with the guy though so I'm not going to say too much. Next time we play a tournament I'll probably ask him to throw in at least a few poaches.