If the owner of the store gave you permission to take them, then it is not stealing. It is a gift to you. Otherwise it is stealing. A simple solution, since you claim to be friends with the owner would be to aks him if you can take 3 to 4 of them when you come in and make a purchase even if it is not coffee. If he gives you permission, then it would no longer be stealing. But it sounds like you have probably stolen a whole case of them and should probably offer to pay him the cost of a case for your penance.