Red and fuzzy screen

I woke up this morning to my iPad 2 with a fuzzy and red screen totally tripping out about it. Come to find out that my 8yr old dropped it an didn't tell me. So I looked on Google to see if this has happened to others. Come to find out many have had the same problem, many comments said to hit the back, drop it again and the screen will go back to the way it should look. Very skeptical about it but come to find out it actually worked. I would suggest to drop it on carpet that's what I did. It did take a few times but eventually screen did come back to normal. I guess if it do any damages I will deal with the repercussions later. Doesn't hurt to try something if it saves a little bit of money in the process.