I look it over carefully, and work the action a few times. Then I catalog it into the collection and lock it in the safe. 
On the rare occasion I buy a knife to use, it gets a thorough check-out including a sharpness test with paper, sharpen it if necessary. Then I put it in my pocket.

On the rare occasion I buy a knife to use, it gets a thorough check-out including a sharpness test with paper, sharpen it if necessary. Then I put it in my pocket.