Ok, as you know just recently picked up my P-51 from being built at my hobby shop, not only did they rip me off on the fee to build it so I will be going to a new local hobby shop I found on hangar 9s site that also has a outdoor and indoor dirt track for rc cars nitro. But anyway I noticed on my p51 fuel on the left wing and a slight amount of dirt on the tires, WHICH means that plane was flown. They had no reason to start that plane, that is my job to tune it, and lets say he said he started it to tune it up, was it really needed to taxi it to get the wheels dirty??? NO...So now technically I have a USED P-51 and the top flite with a knight 100 and all of the electronics was NOT cheap, they charged me 300$ too build it and the other new hobby shop said it would of costed me 100$ and had it back the next day, well it took the other hobby shop 2 WEEKS, yes 2 weeks to build it, I think it took them MUCH less but instead he was being so kind to fly it for me without me knowing. What should I do? I am totally FUMING and need advice before I go in there. Thank you all.