Information Security Restrooms

I was at a SANS conference in Reston this past week and did a double take on seeing the following.
I dont normally go to Reston Town Center, but given the number of infosec people working in the area I imagine the jokes are all pretty much done.
What is an information security restroom?
If Larry Craig had used a infosec restroom would he still be a Senator?
Is this restroom ISO27001 certified?
How does this restroom support confidentiality?
How does this restroom support integrity?
How does this restroom support availability?
Is it susceptible to a denial of service attack?
Principle of non-repudiation (he who smelt it dealt it)
Is there a Intrusion Prevention System?
Core dump analysis?
I better stop now.