American legislatures are surprisingly civil historically speaking when compared to other legislatures. We've had TWO incidents of legislative violence (Sumner slavery incident and 6 January incident). Meanwhile, in Britain, Parliament devolves into a shouting fest every week during Prime Minister's Questions and don't forget how happy Parliament was to send people they didn't like to the gallows in the past. The French legislature did the same.

Taiwan's legislature turns into a free-for-all fistfight whenever the government presents a controversial bill. Japan's National Diet members will literally eat the paper to prevent a bill's passage.