I want to lend my gaming laptop a friend so he can play with me too. Does he have to sign something or his parents are liable for damages in case of damage or is he himself? Of course, I do not want to be responsible for the damage myself.
He or his parents should have liability insurance and also agree to lend to their son.
His parents certainly do not have to answer for him, but the family liability insurance. However, lent things are not always insured. That depends on the exact terms of the contract.
https://www.verivox.de/nachrichten/haftpflicht-schaeden-an-geliehenen-sachen-nicht-immer-versichert-121774/ with a photo showing how someone pours coffee over a laptop - exactly your situation.
In general, the causer is liable for damages, which is determined by law, because you do not need a contract.
Let it be, valuables are not given. Invite him to you and play together.
No insurance is liable for lent items!
No insurance is liable for lent items!
"No insurance" is not quite right. I have again researched: many personal liability insurance exclude damage to borrowed items, but there are quite some that include this risk - so depends on the policy (see also answer from @ bitter herb)
