We don't need bubble gum.

Sometimes, lag or a simple stuttering of the game can prevent from getting this achievement. Sometimes, we just feel "in the zone" and nothing can stop us...

My husband and I were playing Left4Dead 2 while being in voice chat via Skype. I was particularly in shape on the evening of Sep 16, 2011. We were playing a familiar map, and the perfect storm was lining up:
- a straight path
- a katana
- an obstacle before me
- a Charger

When I saw the Charger go for my husband, I shouted: "Level a charge!" and went straight for it... The Charger stumbled and the screen blinked with the announcement of the achievement...

"...WHAT!?!?!!!" That was my husband.

He had tried to get that achievement forever and there would always be something in the way. (Having 2 dogs and 1 cat doesn't help, either...) To see me announce it 2 seconds before achieving it was too ironic.

He took a while before congratulating me...