Burning hot charger - should I worry?

Hello,
I have a MacBook Pro early-2009 model. I have bought it late May this year, it came along with a charger. Right now, while charging, I noticed that it's almost burning hot - so hot that I can't keep it in my hands for long.
Not sure if it's been that way from the very beginning, as the charger used to lie on the floor and it's been the first time I've ever actually picked it up while it was on and charging. Should I worry and stop using the charger immediately (kinda afraid it might do something with my batterry or my MacBook), or is it normal for those chargers to give out excessive heat while operating?
Many thanks,
Dynamitri

My adapter does not utilize a cord to plug into the wall. It is being used "wall wart" style. This gives it the maximum cooling possible. Nothing is wrapped around it to insulate it and keep it hot, nor is one face of it laying on the carpeted floor.
If your power adapter is charging your depleted battery plus powering your computer doing a very CPU intensive task then it will run much much hotter than if the battery is fully charged and you are merely surfing the internet or some other very low intensity task.
If it draws too much power, getting too hot, it will blow its own internal fuse. There is virtually nothing you need to worry about. One persons "way too hot" may be another persons "fairly warm".
If you want proof of that concept look at the thread about the sharp edges on the MBP. Some people are getting great pain from something that others do not even notice.

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