Worst interview experience was a marathon. 3 interviews in a day.

I asked the recruiter to assemble them like that after I had to remind her I was still employed and could go about having interviews all week. I took a day off and departed.

The first interview was with a company that had moved fro their previous address. Since the recruiter obviously checked that, I got to the right place late and with little mojo left.

The second interview was with a company that explained to me how they actually did not need my expertise.

The third was with a company that had just won Apple's Best of the Year award:

Me: So how is it having received the award?

Him: Nah, it's just another one. You get used to it.

[A little more interview]
[We wrap things up and stand up to leave]

Him: Well, thanks for stopping by and talking to us. And sorry we had to do this at our ping pong table. You know, the CEO and I are always playing. He says he's the best, but I always beat him.

All of that sprinkled with a very energising bellyache I had to take to the toilet every now and then (no idea what I ate the night before).

After the marathon, I told the recruiter the third company seemed the most promising, although I couldn't see myself working with someone that pretentious, to which she replied "I thought you had very similar personalities and you have a lot in common".

WHAT?! I've never said anything like that my whole life and now you're telling me you know me from the three fucking phone calls we had?

From that moment on, I've moved away from recruiters and towards networking.