It's amazing what people do in the name of Facebook, and the first half of 2011 was no exception. Here are 10 of the most memorable failures, bad ideas and regrettable decisions that left us shaking our heads.

1: Woman 'tattoos arm' with 152 Facebook friends 

There are some people who like Facebook, and there are others who really like Facebook. Take, for example, this one woman from the Netherlands.

Identified only as "susyj87" on her YouTube account, this woman posted a 90 -second video of the finishing touches on her "social tattoo," which includes 152 of her "closest" Facebook friends.

In the video's description, she writes: "Of course I gave it a lot of thought...To me it represents who I am right now and the time we live in." Cue the regret in three... two... one...

(Okay, it's actually a hoax.)

Facebook follies

2: Google's Schmidt admits Facebook failure

Former Google CEO Eric Schmidt got a lot off his chest this year at the AllThingsD conference in June. For the first time, Schmidt admitted he "screwed up" in the area of social networking, specifically in Google's failed attempts to partner with Facebook.

"I clearly knew that I had to do something, and I failed to do it," he said. "A CEO should take responsibility. I screwed up." Better luck next time?

Facebook follies

3: Egyptian family names child "Facebook"

To honour the role that Facebook played in ousting Egyptian President Hosni Mubarak, an Egyptian man chose to name his daughter 'Facebook'. A unique idea, for sure, however we can't help but feel for baby Facebook when it comes time to make friends of her own.

4: Buckingham Palace guard fired for Middleton insult

In the middle of all the excitement surrounding Will and Kate's royal wedding this year was a less-than-excited palace guard who chose to air his foul feelings toward the princess publicly on Facebook. Which we all know is never a good idea.

Among other things, 18-year-old Cameron Reilly called Kate Middleton a "stupid stuck up cow" - comments that prompted an investigation by the Ministry of Defense and resulted in his firing from patrolling the palace on the big day.

5: Facebook photos prompt polygamy charge

Earlier this year, a Michigan man posted pictures of his wedding on Facebook - a common action for happily married newlyweds. The only problem: he was still married to a woman in Rhode Island, who was tipped off to these photos.

The original wife alerted the authorities, who soon after arrested him for polygamy. Third time's a charm?