Employers need to be ensure that their employees like them. An employee takes the employer's truck and material and goes for a drive. They are trusted to look after those things, to work efficiently and to bill time honestly. When an employee feels short-changed, he will balance the account, himself.

I worked for an employer who discovered that the Labour Standards Act didn't require coffee breaks. It was surprising the number of times that employees would take a little breather because they didn't know when the next break would be.

If you have call backs, suck it up. At least you know who the problem is.