Halfway through the movie Pest develops a crush on Sam. She tries to ignore his clumsy advances in Ron's weed room, but never rebukes him.
Hi-Hatz getting attacked in the elevator. The moment of funny comes along when Brewis calls the same elevator down, and the door opens revealing Hi-Hatz, drenched in blood, with three mangled bodies. He calmly walks out and says, 'You should probably take the next one, blood', before calmly walking off.
"Oh, check it out, he's got a puppet!"
"Call Simon Cowell!" "Aliens got talent, innit?"
"You swear too much, lady."
"We gotta catch em all!" "Calm down Biggz, this ain't Pokémon!"
"It could be diseased. You get me?" "I don't want no chlamydia."
After Pest gets injured the boys hole up in Sam's flat, to which Sam responds by brandishing a guitar and screaming at them. The boys give her one look before returning to what they were doing.
"Go home, lock your doors, do your homework, and watch Naruto."
Watching two elementary school age kids take down an alien about three times their size with a water gun (filled with petrol) and a firework is equal parts awesome and hilarious.
Probs: No one's gonna ever call you Mayhem if you keep acting like such a pussy!