Paul and his father Dave were invited to give an estimate for fitting a bathroom. Paul arrived at the house first, removed his boots as requested, and went inside to start the assessment. When Dave arrived a little later the lady of the house asked him to take his boots off before he went in, but he refused.'What size shoes do you take?' she asked.
Not unnaturally Dave asked, 'Why?'
She answered, 'I shall have to ask you to wear slippers if you come to work here.'
Dave responded, 'These work boots are an important part of our safety clothing.'
She retorted, 'Nonetheless, you must wear slippers.'
Dave replied, 'That's fine. If you can find slippers with steel toe-caps then we'll wear them.'
With that, Paul and Dave left, having decided that they wouldn't take the job.