The Teacher wants to teach me to run her blender.
I don't want to learn.
This is because I glory in my ignorance and the sure knowledge that as long as I can claim not to know what I'm doing she'll make her own smoothies in case I break it. It's a nice blender.
But if she teaches me to use it then I KNOW that first once a week, then twice a week, then every single day, she's going to ask me to make her smoothie for her. I won't be able to say no because 1) I'll know how, 2) she'll know I know, 3) her smoothies are essential to her continued survival, and so 4) if I refuse I'll feel like a selfish, small-minded git.
(I don't know what a git is. I read it in Harry Potter. I'm assuming it's a blood-sucking insect related to the common mosquito, but bigger and bright blue with a tiny head. If you know what a git is and I'm wrong, please don't correct me. I have learned from sad experience that I always like my definitions better than the 'official' ones.)
You could argue that I'm being selfish now, and you wouldn't be wrong, but this way I only feel slightly bad about it, instead of very bad.