eBay drunk
When you're so wasted you can't tell a mouse from a microwave and you buy three of the same thing because you think you're getting a deal and you're not even sure what you're buying.
Drunk at 2 AM. Bought three identical fridges. Now I have three fridges and no idea why.
Tried to buy one T-shirt and ended up with six because I thought they were on sale.
Bought three 'mystery boxes' that turned out to be three boxes of noodles and a rubber chicken.