Two. One to change it and one to put some chips with it.
Who wants to know
When the Doctor changes the timeline, it's usually for a good reason.
Just two, but you're going to need a lot of patience and light bulbs.
None, we've decided to let a man do the job.
A humburger!
Prom
The engineer replies " I make chips" "Oh yummy!"
Plato Nachos