Instructors and mobile phones

Yep, one of the bugbears that really gets me.

Would you want to learn to drive with someone who broke driving law consistently?

Would you want to learn to drive with someone who answered their phone while driving - even though it has been shown to be more dangerous than being over the drink-driving limit?

Well why would you call an instructor who only advertised his mobile number then?

There are 2 guys near me who are consistently on the phone while driving (despite the laws, the warnings and the sheer stupidity of it), and both of them only advertise themselves using their mobile numbers.

Dim or what?

If you want a driving instructor - don't phone one who doesn't have a land line number.