Here are a few, and this is just at the offer stage (at which point you and your team have spent a lot of effort on a candidate): * Candidates reneging after a

Here are a few, and this is just at the offer stage (at which point you and your team have spent a lot of effort on a candidate): * Candidates reneging after accepting an offer (current company made a bunch of concessions to keep them) * Candidate reneging after accepting offer and my company getting an H1B approved for them (turns out they had interviewed with and accepted offers at multiple companies, to get multiple H1B petitions filed and maximize probability of at least one getting accepted... of course they didn't disclose this) * Candidate accepting offer then simply vanishing