1. You should check it out with your keyboard company.
2. Or you should just go get a new keyboard
The expression is usually, "You could have knocked me over with a feather!" It means, I was so surprised (and distracted or disabled) that I could have been easily knocked over with a feather. In other words, my defenses were way down, or non-existant so almost anything could have knocked me down.
Either you didn't hang them up properly, someone knocked them off, or you've been through an earthquake.
Did you hit anything like a curb, a pothole or anything that may have knocked the alignment out? have you checked the left front tire pressure? You may have what is called a radial pull where some cords or plys have broken inside the tire. If you didn't hit anything, and the tire is properly inflated, swap it with the right front, and see if pulls to the right, if it does, you will need a new tire.
Knocked like a hammer hitting a nail. Knocked as hard as a wrecking ball. Knocked like a tree falling in the forest.
If it ran before, and won't know then the filter is not installed properly, or something else has been knocked loose.
peeps knocked it down
Knocked Out was created on 1987-02-02.
It does not do anything of its own accord. As it is an inanimate object with no power of movement it has to wait until someone else decides for it.
Though no single volume can document how Stonehenge got knocked down, it is believed it was knocked down by an earthqauke.
Ernest "Boom" Carter knocked out that original groove back in '73/74 I think! All the best Adam Bentham, England, 23/2/09.
Don't shake the person knocked out.Call for help.
You can be knocked down but not blown backwards.