My first job - had to go to a two day assessment center - the first day I walked into the conference room went to sit down at my designated spot and it was a spinny chair as I went to sit on it - it span round and I ended up flat on my back on the floor - there was only the HR guy there no other candidates there thankfully - but it was still pretty embarrassing! I got the job though. I think it actually works in your favor something like that :-)