<prompt> Human: So here is the situation. Ive never had to deal with this so I could be right or wrong. I just moved into a house with three other roommates. We split all bills. We just agreed to install cable and internet. I did the math per month after the bill split and we all agree it was reasonable. Now one of my roommates is leaving the house for the Summer. He will be gone three months. When I sent out what the bill is for cable, he said he is only going to pay the installation fee because he will not be here to use it the next three months. Here is my thinking. This bill is a fixed cost. Whether 10 people use it, or 1 person uses it, it is going to be the same on the bill. He argued that it was like utilities, but it isnt, because water and electric is a variable cost. This is like him sticking us with higher rent because he isnt going to be here. He is still paying rent, so I dont know why he thinks this is a bill he can avoid. Who is in the right here?Assistant: You are in the right. But you probably cannot force him to pay.Human: Im not going to force anything. It comes out to 7 dollars a month more for each, it just bothered me how thats the go to mindset in my house. My name is on the bills, so if we start deciding this is how we pay, its my credit that gets hurt.  <response>: Ask your roommate what happens if all the three of you choose to go for vacation at the same time? Who pays the bill for that month? 