<human>: I live in a big house with 3 other students. We all work part time and attend university full time, the house is pretty much vacant through out most of the day.

Today, the least responsible resident asked for my advice on getting a puppy as a present for his girlfriend, since I work a lot with dogs and currently have 7 (yes, 7) dogs back home, all of which I've raised from pups. 

Previously, my housemate had a pet fish in the house that lasted all but three days. He cannot comply with simple rules such as: turn the lights off when you leave the house, keep the heat at an acceptable level, take out the trash, clean up after yourself, etc. 

When I tried to explain puppycare and the amount of responsibility required he responds with "You're talking to someone who is becoming a doctor". He seems very arrogant on this decision, and I really don't want a puppy's health to be jeopardized due to his lack of responsibility. 

Please help, thank you.

Can you summarize the given text in a few sentences?
<bot>: Irresponsible housemate who is not home for the majority of the day wants to adopt a puppy, I don't believe he's cut out for it, and wish he would reconsider.