The people who cannot spend energy to control themselves and therefore curse are less prone to using self-control-dependent strategy of lies and deception.
Wowsers.
Wowsers.
I fundamentally distrust people who don't swear. To me it has always signalled priggishness, timidity and conformity. People who see swearing as a sign of poor education or a limited vocabulary are, in my experience, invariably petty, snobbish and bigoted.
If I want an honest opinion, I'll ask someone who isn't afraid to speak plainly. If I need someone to help me out in a difficult situation, I'll call on someone who swears like a wounded pirate - they're not going to be afraid to get their hands dirty.
We are sacks of meat that fuck and piss and shit. We always will be. If you want to pretend otherwise then good luck to you, but I don't trust you for a second.
One of my previous superiors sweared a lot, but when there was something to clarify the conversation took another route. I could ask him a question and then he would freeze and not even a sound would come out of his mouth. The silence could take such a while that I would start to think that maybe he haven't heared me. Then he would slowly and steadly respond - usually not needing to stop midsentence to reformulate (as I usually do). Those calm responses usually did not contain swearing. There where a few colleagues that would just not stop talking until he would respond and then he would tell them to shut up.
These kinds of after-thought rationalizations can always work both ways.
If you find yourself never surprised by any finding, you are probably doing this a lot.
Only people who are 'learned communicators' have the amount of self control to both 'not swear' but also use their communication skills to curry favour, which may involve manipulating the truth subtly or egregiously.
About 50% of the time, the 'raw truth' is a little rugged, and smart communicators learn how to 'change the tone' of information so that it's more palatable.
I don't think it's a matter of 'energy' at all, it's just behaviour.
Also consider this one:
Germans are known for being 'more direct' - and to an 'Anglo' person, their directness can sometimes be interpreted as 'blunt' (You've heard the saying 'honest to a fault'?), sometimes ruffling feathers. The German may perceive Anglo 'redirection' as somewhat deceptive.
But in German - there is usually only 'one way' to say something - the language is very strict, and you usually don't have a lot of wiggle room. So - aside from any cultural issues - language itself really shapes the way information is communicated.
And when I do swear, it's not for lack of self control. It's because I'm making a stand about what my priorities are. Which are usually that the subject of the discussion is far more important than the manner in which it is discussed or the personal, fleeting discomfort of any bystanders or participants.
Pretty much everyone knows they aren't supposed to swear at a priest. Many of the ones that do anyway are being transgressive.
But some people are far and away better communicators than others.
Far and away.
It's the big soft skill that a lot of 'inside only people' don't have, and often don't recognize or value in 'outside facing people' at the company :).