I'm going to be visiting the home of my friend and their family and I plan on getting pissed at them while there.
That seem inappropriate. Would would you insult your friend's family in their home?
I don't feel that they respect me and my aim is to insult his mom.
But you are going to be a guest at their house. Showing basic respect and manners is the least you can do. Trying to insult them will only sour your relationships with all of them, so if you have a problem, why not try to work it out one-on-one beforehand?
I just want them to know who the real boss is. I bring so much to the table.
If you feel disrespected your frustration makes sense, but it's still wrong to treat your friend's family rudely in their own home. If your feelings are so strong, you don't have to visit them and it might be best to avoid them all together.