I verbally accepted a job at a UK based start-up once, it was 3 days per week as that was all they could afford at the time.

It was not until i got the contract that it stated a minimum of 40 hours in the 3 Days, so they wanted me to work full time hours in the 3 days for 3 days pay.

I turned it down. I still see the founder around and he is still looking for dev's.