It's good to be patient with others.
It's late on a Friday night and Eric asks John how to use the new microwave.
John wants to go to sleep.
John devotes a few minutes writing down how to use it and then goes to bed.
John tells Eric it's late, and he should figure it out on his own.
Eric thinks John is gracious and is able to use the microwave.
Eric feels insulted and resents John and won't help John next time and can't use the microwave.