Some of the busy Truckstops,have the smell if Piss in the Parking Lot ,Disgusting!!! I'm not a hugh fan of doing a real thorough Pre-trip @ a truckstop,crawling around the truck in some of these places will gag, ya......... The dumping of trash is part of the reason,in some cases, Big Trucks are not welcome at certain establishments(Wal-Mart).....