There is a phrase in our language that its literal translation to English will be "The friendship of auntie bear". In order to explain when we use this phrase, I will tell you the story behind this phrase:
A man had a bear friend. One day, while this man was sleeping, a number of flies collected on his face. The bear decided to help his friend by driving them off, so she lifted up a stone of 20 man's weight and threw it to the face of the man in order to kill the fly. The fly escaped, but the man died due to the hit.
So as you see, this phrase is used to refer to a friend that loves you and wants to help you, but he makes serious problems (and even kills you!) by doing stupid things for you. (This is when we say a wise enemy is better than an ignorant friend.)
I'm wondering if there is a word or phrase in English for this kind of friendship.