That Dyson Airblades give the perfect opportunity for a stealth fart whilst peeing at a urinal.
I've heard about these. Although maybe not. I've heard about their hand driers, not their urinals.
Edit: Ohh I'm assuming you mean the noise from the drier? Any hand drier makes enough noise to mask a fart!
Cutting in just before the Army & Navy flyover in Chelmsford after passing a mile of crawling traffic.
I see how late I can get in, it's like a little game