I do. I tested their object
permanence with a RUBBER duck,
The Big Bang Theory Season 12, Episode 17
Uh, aprons and RUBBER gloves are here.
Just scrape, wash and stack.
The Big Bang Theory Season 9, Episode 9
And RUBBER gloves, air freshener...
The Big Bang Theory Season 8, Episode 19
I've bounced many a RUBBER ball
in my day.
The Big Bang Theory Season 5, Episode 17
It can cut through steel
like it was RUBBER.
The Big Bang Theory Season 2, Episode 12