Rudest thing a client has ever said to you?

For me it has to be when client sat down and I grabbed my tools out of barbicide and gone and sat down in front of her ready to begin treatment

Client: "*points to tools with dirty fingernails* make sure you've cleaned those"
Me: "They've been soaking in steriliser for an hour...."
Client: "Okay good because I've read salons are very filthy and dangerous"
Me: ............

(If she wasn't a paying client I would have had the balls to asked her why she walked into the salon)