Everyone else is doing it?

I am caught in a hazy opinion on whether people act similarly towards their family and friends.
In my case, i would admit that i am definitely a different person towards my family members . I am on my darker side and would do anything to annoy them. That is weird is'nt?

When it come to the relationship with friends, i am always a mr.brightside and full with positive energy. People would say i am a simple happy go lucky type of guy that everyone would hang out with.

Weird weird double personality.