My phone story:
The guy to my right was playing Angry Birds and I noted a huge tell. If he was dealt a good hand (one he intended to play no matter what), he would put down his phone, even if he was in the middle of a round. If he was dealt a mediocre hand (one he might play for 1 bet but fold for 2), he would finish that round but not start another round. If he was dealt a ****ty hand he would just keep playing.
So he looks at his cards and starts a new round, and basically telegraphs a fold. But it's folded to him in the CO and he looks up, sees nobody in the pot, looks left, sees he's the CO, and then raises. I snap 3-bet.
Fortunately, my read was spot on - at showdown, I fastroll, and then he rolls 84o.
Unfortunately, he showed his 84o because the hand I 3-bet him with was dominated by 84o.
I've never seen someone so pissed off after WINNING a pot. He couldn't even stack the pot, as soon as the dealer pushed thr pot in his direction, he slammed his hand on the table and then stormed off.