i went shopping with my family at walmart yesterday of course i used the electric cart because of sarc i can't walk worth a dam! anyway with groceries in tow i went to leave the store and the dam alarm went off! so i first looked at my boys 13, and 11 and they said "not me". so the lovely lady checked the bags and nothing. my husband said just get up and walk through without the groceries so first we waved my purse, then my phone, nothing so then i walk "sort of " through and low and behold the alarm goes off!! there is nothing in my pockets! so the only thing we can think it is ,is the medicine i am on!!! unless it is the metal plate in my head (just kidding) . so my point is can prednisone, arava , and remicade cause this ? or what is this weird phenomenon?does this happen to anyone else? did i have one to many mri's? just wondering!!!!