Maz I ask them to name the shops (landmarks, features) they're passing as they walk over. If in doubt ask what they can see on opposite side of road. I'm listening on speaker as I'm getting ready. They're verifying all the time.
Thanks SS I don't know why I didn't think of that before

Amusingly, the guy in question called again earlier this afternoon

I get told and must have been told a million times about my nips how they like em
I hate them pulling and biting , and fucking around like they trying to tune a radio station in , really gets on me nerves , and one a few month ago right over the top slurping and sucking right loud , never known owt like it , I had both my fist clenched felt like swinging in his head , even worse if they stinky slimy breath and you can smell the stench after .
I used to love some guys doing this previously but absolutely hate it when they do this these days. Makes me want to die.
Had a potential client this morning ask if I was available at 11.30am for an office based outcall, fairly local so I agreed.
He gave me the street name but no building no. I noticed this but with there being plenty of time, I thought I'd ask him to confirm an hour before the booking so texted at 10.30 for number.
Got to 11am and still no reply so I cancelled him and told him where to go. Then at 11.42am he messages to apologise and that a meeting overran, he isn't a TW blah blah, gave me the street number and said he would let me in. By this time I had left home and gone out walking so ignored him. Even if I had turned up I'd probably have left before seeing him as he wouldn't have been ready due to his late meeting.
I wouldn't have minded so much, but turned down one/two possible bookings to accommodate him!

Just as well that next year I am planning to do away with outcalls.