Okay, Lots of sarcasm. I can play that game too. But I won't! I am too busy trying solve a problem. I do know someone who has bent them back. But he says it is usually not worth it. I just want to use it today and not have to wait for a new balde.
Some times it is necessary to make people stop & think.
You are not the first person who would think, "no worries, I can just bend it back " without the faintest idea of what your are actually doing.
To most it is just a lump of steel & steel bends dosn't it ? So naturally I can bend it.
Well yes it bends.
It also springs back
And it has to be balanced within a very fine tollerance
If it has bent in service then structural damage has been done to the internal microstructure.
Bending it back makes this damage worse
It is not a fender
The thing is spinning at close to 200 mph and you are only a foot or so away from it.
At the best the out of balance will cause the crank to wobble and flog out the lower bush then chew up the oil seal then dump the oil.
At the worst the blade can fracture and send schrapnel flying at 200 mph.
Mowers are not rocket science but blades are. The metallurgy & engineering that goes into them is amazingly complex.
I imagine some where on the web will be information about blade making put out by the factories that make them.
If you were about to jump onto a place & saw the pilot smacking the propeller to knock it back into shape would you get on the plane ?
At a rough guess I would put my money on the blade being defective from the factory and slipped past quality control as it would be rare for a flute to twist in use.
And just because you know some one who has apparently gotten away with it does not mean that it should be done nor that it is safe to do it or even that it was done properly or that in 1,2,3,4 years down the track the damage that the "repaired" blade caused became apparent.
It took near 20 years for metallurgists & engineers to convince the government down here that bending an aluminium motorcycle wheel back into shape should never be done.
However around 40 young men died from wheel failure before anyone took notice & legislation was enacted .
There is a very sound reason why your owners manual warns about using a blade with any signs of damage & it is not just to avoid being sued.