Li Shenron
Legend
This is one of the oldest discussions we did among friends about roleplaying. I think it happened the first evening we ever played a RPG 
Our conclusion: "Roleplaying a low-Int character is not about purposefully making bad tactical choices."
Some reasons to agree with this statement could be:
- low-Int creatures (think animals or vermins) are NOT suicidal: survival is always the most important instict
- low-Int players will never be able to roleplay a genius
: you can't force someone to "simulate" being smarter, so why instead force them simulating being dumber?
- a low Intelligence results anyway in other in-game penalties, having to play dumb is not a penalty assumed by the design of the game
- dumb characters in novels and movies do something stupid now and then, but not all the time: they don't die because of a stupid act. If you think about it, characters rather die for unwise choices (including greed, recklessness, mean deception) but rarely die because they are dumb (although they do get into danger), because simply it's not a nice thing to read in novels that someone died because he wasn't intelligent enough
- if you really have a brilliant idea, but you think your PC could never be so smart, go around it: (1) have your PC says something which on the surface sounds stupid, but will suggest the hidden idea to the others; (2) be straight and suggest your idea OOC to the others

Our conclusion: "Roleplaying a low-Int character is not about purposefully making bad tactical choices."
Some reasons to agree with this statement could be:
- low-Int creatures (think animals or vermins) are NOT suicidal: survival is always the most important instict
- low-Int players will never be able to roleplay a genius

- a low Intelligence results anyway in other in-game penalties, having to play dumb is not a penalty assumed by the design of the game
- dumb characters in novels and movies do something stupid now and then, but not all the time: they don't die because of a stupid act. If you think about it, characters rather die for unwise choices (including greed, recklessness, mean deception) but rarely die because they are dumb (although they do get into danger), because simply it's not a nice thing to read in novels that someone died because he wasn't intelligent enough
- if you really have a brilliant idea, but you think your PC could never be so smart, go around it: (1) have your PC says something which on the surface sounds stupid, but will suggest the hidden idea to the others; (2) be straight and suggest your idea OOC to the others