First I'm left handed so I can do any thing!
I use the good old original yellow and black Olfa cutters all the time with no problem and I'm a lefty. I've had them for ten + years. Never a problem. Never, never, never! I've certainly gotten my moneys worth out of them. Some times the new and improved things, aren't!
peace :D
Sewmary, you are so right. When co- workers pick up my LHS I hear eeeeeewh. I never have problems with others useing my LHS.