PayPal is safe. I've been using it for years on all of my online transactions and sometimes in person if they don't want cash.
It takes a while to set accounts up, but its easy sailing from there.
Paypal app= win.
If I were selling a snake, I would want everything paid for before shipping the animal. Just in case the buyer just pays $100 deposit, gets the animal, and never pays the rest. I think you just need to trust the guy.
If you're really that uncomfortable, there's no harm in passing up the deal.
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