Superb. I always think of stuff like that like an hour later when I've calmed down.
My finest quip was in Les Gets a couple of years ago when we were outside a bar in town having a few beers when a group of lads approached the front door and pausing as they walked past us, their head honcho, with a face like a bulldog gnawing on a nettle, turned to us and ased "is this the gay bar ?"
I replied "it f*****g is now"
Thankfully they all fell about laughing and we ended up drinking & having a laugh with em.