had one yesterday went like this
hello
"can you given me a price on a front room dinner ? "
blah blah blah as i was writeing the address down i aks for a phone number incase we need to get hold of them went like this
"i dont give my phone number out im ex. directory"
" yes i under stand but we need a phone number incase we get helded up or cant find the house and after each day all customer phone number are removered from our dater base so nobody will ever get your number "
" but im ex die. and i dont trust you with it"
" you dont trust us with your number

? but you want us too spend over 2 hours in your front room
"yes"
"well im sorry if you dont trust us engouth with your telly phone number but trust us to be in your house for two hours mostly lone i think your mad and i dont want custom from the likes of you ! good bye "
if they cant trust you with a number then they cant trust you to be in there house its as simle as that in my eyes