this day it was -7 outside. No prob, I only ever even consider returning stuff only when its defective. If I bought the wrong thing its my fault. I'm in retail too and don't believe in buyers remorse.
Some of the -30C days we had our rifle bay heating system cranked up to 40C or so... it couldn't really keep up with the sheer airflow of the intake + wickedly cold air, so it still felt like 15 degrees inside (10C with windchill!).
We give refunds and exchanges on a case by case basis. It's not like we'll pretend you don't exist if the gun you bought from us shoots backwards.