Threats can be illegal. This would not be a safe thing to do and could lead to criminal prosecution.
It may not be illegal, but it would certainly be invalid. The credit card holder is the only person legally entitled to sign his credit receipt.
no it is not illegal but is good to check first
Highly Illegal
Fake credit card numbers are illegal. If you get caught using fake credit card numbers, you could go to jail.
Yes, of course it's illegal.
No, but it is legal to steal whatever you want.
Yes. It doesn't matter if you make money off of it or not. If you use someone else's music without their permission it is ILLEGAL.
Yes, using someone else's credit card without their permission is considered credit card fraud and is illegal. It can result in criminal charges and other legal consequences. Always obtain explicit consent before using someone else's credit card.
If you are downloading free movies you never need a credit card. However, downloading free movies is illegal.
If they are joint user of the account, yes she is responsible
Yes, using someone's credit card without their permission is considered credit card fraud, not identity theft. Identity theft involves stealing someone's personal information to commit fraud or other crimes beyond just using their credit card.
If you're using someone elses e-mail adress for playing games online then I would say yes I would say that is illegal, but if you use your own e-mail adress to play games online that that wouldn't be a problem.