That's most people's reaction. Lots of "OMG!!!" LOL. I've done a bunch of them over the years and have pretty well perfected them I think.I never tried a fried turkey until this past Thanksgiving, it was hands down the best turkey I've ever eaten. I told my wife I'll never oven roast another turkey ever.
Make sure you at least brine it for about 1 hour per pound. I make up a salt and brown sugar concentrate (1.5 cups sea salt or kosher, 2 cups brown sugar, 1 gallon water). Bring it close to a boil. Make sure it dissolves clear. Dump it in a bucket about 1/2 full of ice (5 gallon bucket). Let it melt. When the temp is low enough (cool or cold) drop in your thawed turkey and fill the bucket just enough to submerge the turkey. Put it in the fridge for about 15 hours (for 15 pounder). Before it goes in the fryer make sure you dry it off good. Don't brine too long. Stick to the 1 hour per pound.
They're easy to cook and cook fast. 3 min per pound @ 350 oil temp. Make sure your oil thermometer is accurate and leave it in the oil the entire time you're cooking. If you maintain 325-350 (the oil will cool slightly when you drop the turkey) it'll take almost exactly 3 min per pound.
Another good tip is don't keep the wings and legs close to the body. When you get a Butterball the legs are flipped under a piece of skin that keeps them tight to the body. Need to pull them out and let them hang kind of free.
Use peanut oil. Usually 3-4 gallons in the standard size frying pot, for a 15 pounder. After cooking, if you don't overheat the oil, you can use it again. Just strain it back into the container. Make sure you get all the chunks out of it.
2 biggest mistakes people make are dropping in a wet or not fully thawed turkey, or too much oil in the pot. Either will cause lots of excitement LOL. Lower it into the oil SLOWLY.
Always fry away from the house and with a fire extinguisher and some old heavy towels on hand. Small grease flare ups can be smothered with a heavy towel or two. Last resort you can hit it with the extinguisher. I'm a bit of a pyro but a freak about fire safety at the same time. I always make sure I'm in jeans with a heavy long sleeve shirt and I use welding gloves.