I think drive-thrus should be banned in certain locations (downtown and inner city), but not banned altogether. Obviously when you're trying to create vibrant mixed-use streets, you don't want that being interrupted with a drive-thru. But with the way we build suburbs today, drive-thrus make sense. In the case of Tim Horton's in Cambridge, they get so backed up that people park, get out of their cars and line up inside at a certain point because it takes less time. Having both means faster service (assuming there's enough staff). And at Timmy's, anything to make the lines shorter helps.