Tenant responsibility question

[Gabe N.]

Hi

i am not an expert on this, and dont have the best people skills in the world. I noticed a trend that no matter how big or small something is damaged all tenant's seem to always deny it and never seem to accept any responsibility and they always claim that its never their fault. 
I am not interested in pointing fingers but would like to get some advice in order to find a way for the tenant to accept some or all responsibility for damage caused while they are living in the house. Doesn't matter if they did the damage or if it was their kid, dog , friend or if the damage occured without their knowledge. 

The way i look at it , if i borrow my friends car and someone scratches it while i am in the grocery store, even though I didnt cause the damage, its still my responsibility for the damage because it occured on my watch.

How do most people deal with these type of situations where the tenants act like the victim and denies that they did anything wrong?