Or (and this is my last story, I promise) the occasion a few years ago when I and my ex-business partner were in Miami, a town he knew well but I didn't, for a diving trade show. We needed some brochures to distribute but had no means of generating or printing them. My colleague didn't hesitate - off he went in the rented car, returning an hour later with a laptop, a colour laser printer, and several reams of high grade paper. That afternoon and evening were spent designing & printing several hundred one page brochures.
The next couple of days were spent at the show. When on the third day we came to pack up and leave, I realised the laptop and printer were nowhere to be seen. My friend had taken them back to Office Depot, said they weren't suitable for our purposes and got a 100% refund, even on the paper that we'd used.
That's one reason he's my EX-business partner.