飲屋でやろう：Do not interfere with pervert exorcisms.

家でやろう（１）：Play your music loud enough to facilitate synchronized ear cleaning.

山でやろう：Keep all perverts away from your incredibly lazy girlfriend by packing you Santa sack full of bacon.

庭でやろう：Sword fighting with bees while being watched by a pervert is twice as dangerous as regular sword fighting with bees.

家でやろう（２）：Tripping perverts and stealing their shoes is a good way to meet girls.

Cbass wrote:
what I still don’t get it, it’s the whole bubbles stuff….they are bubbles, right? coins? what’s the deal with them?

Oh, that’s visual shorthand in manga/cartooning for being drunk. The little bubbles represent the belching feelings when someone has consumed too much booze.
The graphic artist Bunpei Yorifuji who did the posters is rightly amused by the plague of vomiting drunks on Tokyo trains as you can see in this closeup of his November poster.

For more about graphic artist of the original posters, Bunpei Yorifuj, read my friend’s article in Japan Times….

Punchy posters urge Tokyoites to mind their manners
Special to The Japan Times, Sunday, June 21, 2009, by BRETT BULL
“….for the poster to be effective, it needs to have a catchy title, one that can be understood in a second, and it has to contain an illustration that is easy to recognize.”Yorifuji and his copywriter start the process with a perusal of common complaints received by the subway operator’s Customer Relations Center….more...”