We like the plumber that we use because, he is good and efficient, he is a specialist in our make of boiler1 and because he is only very expensive. (For any other plumber round here you need to re-mortgage your house just to cover the call out charge.)
The only thing I don't like about him is that he really doesn't understand communication. I decided that it was time for a boiler service. So as usual I phoned, and as usual his phone always goes straight to voicemail. No response. I texted several times. No response. As usual we have no idea if he is on holiday, moved, lost his phone, dead or whatever.
Then at 7.30 this morning he phones to say he is on his way. Much leaping out of bed and rapid showering for both of us.
1 Mrs B suspects he has a whole load of logo-ed fleeces in the back of his van and chooses the correct one for each call.