None. Babies don't have the motor skills or the depth perception to change a light bulb.
Just two. One to politely ask and the other to politely help.
Exactly the same amount as the Redditors on and.
None, because they keep on asking why all of the other light bulbs in the house aren't being changed at the same time.
Only one but he has to manufacture it first.
The baby grows up and learns to stop crying.
If you don't like it, you just shake it and start over.
He didn't have any depth perception
Because he had no depth perception.