Glue a sandwich on the ceiling.
Student: "So we know when to start Christmas shopping!"
You burn some fagots Look up the definition before commenting/down voting...
a sandwich
In bytes.
Glue bread to the ceiling.
You tape bread to the ceiling.
I'm not sure but if you see one walking across the ceiling then run before it collapses !
Glue it to the floor.
wait for it ... wait for it ...) brucilage !!!!!!!!