'Hell on wheels!'

So...Will was woken at 7.30 am by his phone ringing.It was a call from a National Kindergarten company asking if he could cover for an absent teacher today. He signed up as a supply teacher for them ages ago but had heard nothing until today.He accepted and after a mad dash to get ready headed off to Warwick about an hour's drive away to get there for 8.30.He returned just after 4.00 pm saying it was 'Hell on wheels!'It sounded pretty awful.Oh, the things we have to do!