15 Annoying Mistakes You Never Noticed In Friends

5. Chandler Wants A Gym Membership/Already Has A Gym Membership That He Doesn't Use

In "The One In Vegas," which - yes - takes the gang to Las Vegas, Chandler mentions that - should he win $5,000 gambling - he'd use the money to join a gym and build-up his upper body strength (yeah, right). Still, everyone can dream, can't they?

There's nothing wrong with just saying he wants to get fit, is there? Nope, except that both Chandler (and Ross, for that matter) already have gym memberships that they seldom use but don't have the guts to quit prior to this instance.

4. Rachel Doesn't Know How To Spell Her Own Surname

Make your mind up, people who wrote this show. You'd think that it'd be simple enough to pick one spelling and stick with it, given that Rachel's surname is about as simple as they come. For some reason, though, nobody was capable of committing to a singular spelling on Friends, which resulted in poor old Rachel looking as though she didn't know how to spell her own name.

Although it's spelt "Green" in the credits, then, the sign on Rachel's door in Bloomingdale's has her pinned as"Rachel Greene." On Emma's first birthday, though, it's spelt "Green" on a cake box. Have some respect for yourself, Rach - we know you're not the sharpest tool in the shed, but you're not that confused.