Then of couse there’s the story (not sure which Rosh Yeshiva):
Talmid: R”Y, besides Bitul torah, what issurim am I oiver if I go to a ballgame?
R”Y: Bitul Torah.
Talmid: But what issurim BESIDES that. Am I oiver any other lav?
R”Y: Bitul Torah
Talmid: I KNOW bitul torah! I mean BEESIDES that one!
R”Y: NO!! You are oiver on Bitul Torah! Period! There need not BE any OTHER issurim to stop you from going. You’re worried what you will be oiver, yet you push bitul torah to the side and seek OTHER issurim. why?? Is Bitul Torah not BAD ENOUGH for you??!
lesson- it is bitul torah. Add that to my list above. ’nuff said.