This happened to us once when we bought a jumbo inflatable Little Tikes bouncer. Got it on clearance at Kmart in October. Opened it in March and was horrified to find a used muddy slip in slide/swimming pool. Called the store because I still had my receipt. Talked to the manager. I had to settle for an in store credit because of it being over 90days. The box had been completely sealed and did not appear to have been repackaged in any way. It really is shocking what some people will do.