Never make false claims of a food allergy to justify altering the ingredients of a dish. If garlic gives you gas, for example, that should not be construed as an allergy. Most servers can detect you’re lying when you spontaneously become gluten intolerant after we refuse to make a substitution, so come correct. Staff in restaurants take food allergies very seriously, so should you.
Don’t ask your server his name upon first meeting. Like prostitutes or strippers — do you really need to know our real names? We will always assume you’re only asking so that you can boss us around more personally. If you feel a connection with your server as the evening progresses, then discreetly ask for an introduction.