So, just a thought I was mulling over... Do you think, before WJ peeled to go Tigatron it up, that Optimus gave him any sort of a heads up? Maybe something along the lines of a "Hey Wheeljack... So... This badboy we're chilling on is Unicron... So... Um.... Y'know... Don't eat the purple energon.", or something? Anything? Maybe, Prime just figured "What you don't know, won't hurt you", and sent him on his merry way?