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Man, all of our stores have rooms set up specifically for wet testing. Every customer that walks through that door is encouraged to wet test. Very few people do, though.IF someone were to slip and fall and IF they seemed inclined to pursue litigation, well, no one saw them come in and no one has to see them go out.......... Terminator
Frame the picture of you with teh AR 15 and hang it on the wall in the Wet Test room. You may also want to hang a copy over by the cash register and lable it "Returned check policy".