i got some stuff for sale on gumtree and some other classified sites. I keep getting emails from people offering to gaypal me more than the items worth 'right now'! or offering me generous amounts to post the item to their country. Dont they realise that if they act like a real buyer and try to haggle with me to get the item cheaper im more likely to fall for their shit. Am i right to presume that the scam is that they paypal me the money, i send item and they do a charge back?