I've been sacked once, from a call centre job for a 'breach of data protection act'! oops! It turns out, the lad who sacked me is not 2nd team captain of my rugby club!
I have walked out of another call centre job at lunch time on the first day, col calling, hated it, on my way to the train station I got a call from a recruitment agency about the job I'm in now and have been for 6 years so a smart move!