What's your excuse?

I can't, I have to buy a new kitten.
You have to fly a plane.

I can't I'm drunk...
You have to go to the e.r.....

I can't because I'm already dead.

You have to take my body to the morgue.

I can't because your alive

You have to take my cat to her checkup

I can't because I have a dog.

You have to water my plants.

I can't because the sky is falling

You have to cook me food

I can't because my fish ate my arms.

You have to find me new arms and afix them back on.

Alas, I cannot... as I also have no arms. Or legs. Or torso.

You must assemble me a robot to serve as my functional arms.

I do know how to build you a robot and I have good vision, but I am deaf and don't know how to read.

You have to teach me how to read somehow and then I can build your robot.