Last time my mother tripped and fell I decided to pour liquid on her.
Wow, why did you do that? Was she okay after the fall?
I was with my friend near the stairs and she tripped over us and fell down. I may have poured some coffee on her.
Accidents happen but you shouldn't intentionally cause someone to trip and fall. They may be injured badly enough to need to go to a hospital. They may resent you for what you did.
Whatever.
You seem to still not fully believe me, but you could have seriously hurt and embarrassed your mother. You're supposed to take care of family and not harm them.