Betrayed!

A few days ago my father accidentally broke a plate and I exclaimed, “Alright Rosie,” referencing my sister’s (alleged) history of clumsiness.

We both had a good laugh at that.

Some time later he struggled to get out of a chair, grabbed his back, groaned and muttered, “Alright Kevin.”

Excuse me???

What the hell was that???

I thought we were having fun at my sister’s expense, so how am I out here catching strays???