Slow

Not in a politically correct Jeremy Clarkson apology way, there really are a lot of very special people out there. Some are made special by consuming alcohol, others by consuming drugs. Some however are just normally missing a few cards in their pack. They all provide the business with custom, their money is the same as everyone else's, their problems also seem to be everyone else's.
As doorstaff we have to communicate with the punters, sometimes in a hurry, sometimes with all the time and patience in the world. More often than you would credit it takes all the time and patience we have. The concept that access to a venue is not a right. Simple premise, it's not yours, you don't own it, it's not a public institution, there is no "rights" issue with being rejected.
The simple ones seem to struggle with this concept. The idea should be common to just about anybody whose lived in the world. The special folk don't get it, even when explained in words of one syllable, very slowly. This can infuriate some staff, my response is generally to laugh, whether it's with the other doorstaff on by myself. I care about humanity, if I let the mentally deficient get me down I'd really struggle to keep meeting them every night.