This is an interesting thing with my mom. She usually uses Tagalog and Visayan but she switches to English when she is angry with us or when she's quarreling with my dad. I've observed that my maternal grandmother is also like her and some of her siblings too.
Aside from that, I've observed that some people switches to their native language and dialect when their anger or emotions are really intense.
Is anyone here like this or do you know anyone who also does this?
Would like to hear your thoughts.