Citation Mongers
I received a message a few days ago from someone in my field who requested that a paper I recently uploaded to arXiv include two citations to his papers. Now, I am all for giving proper credit when it is due. However, in this case, the guy wanted me to cite him for using a mathematical technique that has been around for 50+ years. And, I will note that I cited the original source for this technique. What's more, the problems he and I solved are only vaguely related.
The guy is actually well-known in my community as a citation monger. Nearly all of my colleagues have experienced outlandish citation requests from the same person.
I'm tempted to respond to this person and let him know exactly why his request is ridiculous. But, the more level-headed person in me is telling me to just hit the delete button.
How do you deal with citation mongers?