Ichi! Ni! San!
I realized this morning that it sounds like a scene from Matchstick Men when my downstairs neighbors leave the house. Due to the layout of the building, there are three doors between them and the rest of the world (lucky for you).
Heading out?
eine! (ka-chunk) zwei! (ka-chunk) drei! (ka-chunk)
Back in?
Uno! (ka-chunk) due! (ka-chunk) tre! (ka-chunk)