He seems like a man with a tiny tip.
I sat on a plane next to him on a flight to L.A. He spoke on the phone before take off using F-bombs like crazy (not angrily or overly loud but very frequent). It was 1st class and there were no children but I still found it a bit rude). The flight attendant had to ask him twice to please stop his conversation (they can't do the safety speech, ie, cannot take off, until everyone is off the phone). On the second time, he ignored her and I VERY lightly nudge him with my elbow and simply pointed at her (as if to say, she's trying to get your attention). I didn't say a word to him. He pulled the phone away from his face - stared at me for about 30 seconds straight (I wouldn't look at him or acknowledge his behavior but could clearly see him from my peripheral). He hung up the phone and sharply shoved it into his suit pocket.