Well at least your brother is cool.

Moms/wives can be like that sometimes. My wife gives me grief
every time I bring home a new tank or animal. I have my own herp room in the basement and this is the only hobby I have and the only thing I spend any money on (compared to her clothes, makeup, jewelry, gadgets...she spends 10x more money than i do).
Anyway...just keep your bedroom door closed so she can't see it and she'll get over it eventually (or find something else to complain about).
