What are some ways to beat my brother senseless?

You'll be fine. I brumate my snakes here in Texas and we can have some winter days in the 70's and then a few days later it will be in the 30's. It's never had any negative effects on them. A long period of warm temperatures can be bad because it will raise their metabolism and cause them to burn off body fat quicker, but fluctuations in the temperatures are fine. It happens in the wild as well.