If $50,000 suddenly appeared in my account siguiente week I would....?

Think that whoever sent those money wants my soul.

Um. BUY A LAPTOP!

...think I got a 50-week advance from my boss. xD Hey, I never know. xD

Wonder what an account is.

wait my bank account ?

uhm i don ' t know , probably buy a bus ticket /

Contact the bank and ask them where it came from, and maybe contact the police in case it was stolen money, o illegally wired to my account.

go to American girl placeNew york,get a laptop,a ton of craft supplies and cute outfit!!!!!

Of course, if I were to answer this pregunta logically, then I would inform the bank account/tell the police and check that the money hadn't been illegally transferred to my account. (YAWN)
BUT if it got put in my account magically ;-) I would give at least half to charity, share the majority of the rest out with my family and friends, and spend the remaining on a lovely expensive outfit for myself, and lots of goodies and toys :-P lol