I'm Not A Drawing Machine

Stamp request for She wanted a stamp saying "I draw fanarts when I want to!" 

Although I'm no drawer (I'm more of a creative writer) I can imagine how stressed some artists may be when people actually demand them to draw fan art of whatever favourite character and other things like that. Why can't they leave them alone and understand that if the artist wants to draw something like fanart, it's their decision? They're certainly no drawing machines if you know what I mean.