Richard Stallman’s rider 1

Facilities, or, A microphone is desirable if the room is large

A supply of tea with
milk and sugar

would be nice.
If it is tea I really like

I like it without
milk and sugar.

With milk and sugar
any kind of tea is fine.

I always bring tea bags with me
so if we use my tea bags

I will certainly like that tea without
milk or sugar.

From the detailed requirements that Richard Stallman sends ahead of his speaking engagements.