Phone: Hey, it's ${Name}. Blah blah… Still interested?
You: Excuse me?
Phone: You applied 4 years ago...
You: Dude, seriously?
@nixCraft I once heard back from one company about 4-5 months after interviewing and getting no response. I had been at my current contract at least two months. "Yeah, we've heard that our hiring process is slow." No .. kidding.