The first usability joke was quite popular. Let’s give it another try!

Knock, knock
- Who’s there?
UX
- UX who?
UX and some T and you’re in a fancy suit

Knock, knock
- Who’s there?
Usability
- Usability who?
U and I are in usability

Knock, knock
- Who’s there?
Usability
- Usability who?
I’m looking for UX but I only see IA and UI.

Can you do better?