Cookies is a skit that made an appearance in Asdfmovie2. It starts when a lady says to the children that she has cookies and the kids cheer until the I like Trains kid appears and the kids went silent, seconds later the I like trains kid gets hit by a train.
Script
Girl: Hey kids! I bought you some cookies!
Kids: COOKIES!
I Like Trains Kid: I like trains.
(Intense staring)
(Train hits the I Like Trains Kid)