In a movie theater which armrest is yours?

I'm the sort who starts out with my feet on the seat and my elbows on my knees. I like to think I'm compact and mildly considerate. Of course those are two illusions dashed to smithereens as soon as one or both kids winds up in my lap ... then I am tenticle mom. I practically take up the entire theater. "ALL ARMRESTS BELONG TO ME!!!" mwa-ah-ah-ah.