I've been burned by a "I'm on my way" buyer before.
Now I send them to the local Tim's and have them text me when they are they. It's a 2 min drive for me. If they are not there, I grab a steeped tea, head home and block their number.
Sent from my purple GTAMotorcycle.com mobile app
A veritable treasure trove of life hacks in one seamlessly misspelled directive. I see you're not to be trifled with.