And how do you know you are shooting blanks? If you haven't been tested by a doctor, you don't really know.
No, there should be a period of about 6 months before you can be sure he's shooting blanks.
Gun Shops and if a sporting goods store sells starter pistols they will most likely sell blanks. There are 22 blanks that are used to drive nails into concrete. They come different power levels and should work for blanks in a starter pistol. Any lumber supply should carry them.
No, you should not be worried. It is fine.
Does the friend has the history of stealing. If he does then you should be worried, but if he does not you should not be worried. But to be safe, you can keep you stuff on safe place to avoid excuses.
Yes, you should be worried if it was not caused by mosquitoes or falliing.
should i be worried about this bump at the corner of my right ears?
My friend, the whole world should be worried about Global Warming, including you.
Below your ankles.
Depends if you want to be pregnant. If not you should be worried...
you should be some what worried because that could mean that you are not socializing him properly.
You should never be 'worried' about girls. They are not dangerous, unless you lack self-control.
The most dangerous type of radiation is Nuclear radiation which is the one that should be most worried about.