When you go through drivethru...

I'd rather check it first. But anyway, if ever, I'll go back right away because they might not believe me if I returned the next time I use their drivethru. I don't call since calling would mean delivery or whatever, it doesn't apply here in my countries food chains that offers drivethrus.

I persona;lly would call and get it the next trip, unless I am travelling far away from home. In that case, I would go back if I could. I know my hubby drives me crazy, because he will always go back and get it. Of course, we usually check, before we leave the parking lot, to avoid having to go back for anything at all

i don't have a car so I do not go through drive thru's and as far as I know there aren't that many here in montreal, people park their cars and go in and order.

well I guess that depends on where I am at the moment I have discovered the mistake... and if I am still close to the store it depends on if I am in a real big hurry to get somewhere else or not. I have done both - called in the error as well as go back into the store. I usually like to check my order before I pull away from the drive through, though.