Lately, all my friends and I have been doing is figure out dumb ways to fail heists. In Fleeca alone, we've blown up Lester's car and killed him, ran him over in his own car, tried to cook a grenade outside the car to kill ourselves (that didn't work for some inexplicable reason), and in general have been making him walk long distances to the Granger. Surviving isn't really important to us since everyone in my friends group has money and several (including me) have completed the Criminal Mastermind challenge- hence why being idiots in heists is more fun right now than actually doing the heist itself (friends only since I only play private lobbies and heist with friends).