Say It Isn't So Doc

This is the first time that I have cause to judge the character of the companions that the Doctor keeps. He usually has pretty high standards so I have no idea how these two numnuts slipped under his radar. I wish he could just use the Tardis to go back in time an 'rectify' the situation but we all know that only creates a time paradox and parallel universe that doesn't fix the original problem. You can't use time travel to kill Hitler as a baby and you just have to accept a universe where two twin bananas wear virtually identical pajamas.