I'm going to skip the queue at the supermarket
Why would you decide you can cut in front of the line?
I want to be less stressed than other people, and standing in line is too stressful for me.
It is rude to cut to the front of the line. If you feel that standing in line is stressful, it would probably feel even more stressful to be yelled at by strangers angry you are cutting in front.
I don't care about their opinion. I rather leave the store quickly.
You could also get in trouble with the store security. If they feel you are causing problems they could kick you out and you won't be able to shop there again.