In an interview, you could always try the old "clash of personalities" line. e.g.:
"I just couldn't seem to get on with my boss. I think there must have been a clash of personalities. I worked really hard but whatever I did was never good enough for him. I'm looking for a fresh start where I can prove to someone new just how good I am at my job".
Such an approach might work but I have to admit that, when I was teaching, parents frequently blamed their offspring's laziness on a 'clash of personalities' with me. I've learnt to treat the phrase as code for 'damned lazy' ;-)
Chris