can't even do nothing properly

One day dad went into McDonald's for a burger but it was quite busy and he had to wait in line. Also, the teenage staff weren't very efficient: one was flirting with a boy from her school, another was talking on her mobile, and another was just plain slow and useless full stop. Dad got more and more impatient. He had a terrible hangover and all he wanted was a nice greasy burger to throw to the