Every year there is some houses burned down from this...doing it in the garage or under the eve is NOT a good idea.FWIW, there was a topic on deep-frying turkeys on the local news today.
One main point they stressed was to DRY the THAWED turkey before frying ('cause water splatters like crazy in hot grease).
Another was to make sure you use the proper amount of oil, so it won't spill-over when you SLOWLY lower the DRIED AND THAWED turkey in.
And finally... in case something goes wrong, don't do it in or near any structure you don't want damaged.