I'm left-handed, and proud of it, but I can do a lot of things with right hand because this is a cold, hard world to us poor southpaws. Ever try to use a regular pair of scissors with your left hand? *shudders* Or try to use a manual can opener by attempting to turn it with your left hand? Impossible! Or, *gasp* use a serrated knife on a tender tomato with your left hand? It's the stuff of nightmares, I tell you! So, yes, in my many, many moons of walking this earth, I have learned to use my right hand to accomplish certain tasks. I can even write passably well with my right if I slow down enough.
Incidentally, I'm also left-foot and left-eye dominant. Want to test yourself on this? Take a couple of running steps towards a soccer ball and give it a kick without really thinking about it. Which feels more natural, using your left or right foot? As for the eyes, with both open, look straight ahead and fixate on a particular object. Then close each eye, one at a time. If the object you're staring at shifts a little in position, then that is NOT your dominant eye.
Locky, you asked why Bubba's aunt was forced to write with her right hand when she was in school, and so became a right hander. Well, as wacky as it sounds to us today, that was very much a Christian belief, that the left hand was somehow "evil", because Lucifer was said to have stood at the left hand of God before he was cast out of Heaven. Therefore, a child who exhibited signs of being left handed was very quickly, and usually very painfully, taught to control those "evil" impulses and use the right hand like good, honest, God-fearing people are supposed to do! After awhile, people didn't really believe that any more, but kids were still rapped on the knuckles when they used their left hands because, after all, why not just stick with tradition? It wasn't until the 1950s in the United States when public schools stopped forcing children to be right handers, but many parochial schools (schools run by a religious group, like Catholic schools) kept up the practice until well into the 1980s.
Weird!