I occassionally get a call every so often.
"hi I have a toilet that wont flush, do you know whats wrong with it?"
"no I can not see it, I can come out in 2 weeks"
"ok can you give me another plumbers number please?"
"no sorry I do not know any"
"you are so helpful, not, I will not be using you again, i have completely wasted my time, thank you for nothing i.e."
Like I am suppose to be all knowing and have a yellow pages sat next to me at all times
Thats where you want one of the number of a company that charge a fortune and just laugh as you gie them the number.