Fabian bet
A tricky deal where one person can't get shafted but might get a sweet bonus
My sister and I had a Fabian bet. She can't lose her phone, but she might get a new one.
I bet my friend that I'd finish my homework. He can't lose his cookies, but he might get a cake.
My dad and I made a Fabian bet. He can't lose his favorite shirt, but he might get a new one.