Aliens... with Laser Jackhammers!

"Someone please get me the white pillow, the big ice and my brown blanket."  All three kids take off to various places in the house to bring me the requested items.  I suck in a breath at the pain that shoots through my knee and leg.
"Why do you do that?"  My oldest girl asks.
"It hurts.  Like... I don't know how to explain it..."  My eyes tearing up a little at the pain, and I grit my teeth.
"Jackhammers?" The boy offers.
"Maybe like magical trolls with jackhammers..." I reply.
"Trolls exist!  They steal your socks, but only the left ones.  What's with that?" The three recite in unison the lines from a popular dragon movie.
"Ok not trolls.  Fairies?"
"No, they aren't that mean." My princess middle child says.
"Aliens!" The boy interjects excitedly.
"Ok.  Microscopic aliens live in my knee.  They take laser..."
"Laser jackhammers?"
"Sure.  Microscopic aliens live in my knee and leg and they take very tiny laser jackhammers and try to mine the..."
"They're stealing your bones!" The oldest eagerly contributes.
"Technically, I think its cartilage, but maybe the aliens are just tunneling through it..."
"With laser jackhammers..."
"OK, so microscopic aliens have entered my knee and leg and they are tunneling through the cartilage and into bones with..."
"LASER JACKHAMMERS!"  We all shout and laugh.
We laugh at the idea of the laser wielding aliens trying to steal the bones from my leg.  And now, when I call for their assistance we yell, "the aliens are attacking, take your positions!"  "Its the aliens! Quick!"

And this is why instead of uttering "damn" with this particular pain, I now say "aliens," and giggle a bit.

I have good kids.