True, but that particular part of it was written with an absolutely straight face. There could have been a gun in the car, in the glove compartment, etc. In an entire career as an enforcement officer, there's a real chance at some point you will encounter a situation like that. In which case, rationally you have to treat every situation like that. My comment was sarcastic to a point, but these are the real actual, even necessary consequences of near ubiquitous access to guns in a society.

I remember seeing a clip of a cop walking up to a car only to get a shotgun unloaded into him as he reached the window to ask for license etc.

Next time he does a traffic stop you can bet he's going to be humourless and aggressive in making sure that the drivers hands are visible - probably with his hand on his weapon. I expect most of the colleagues who spoke to him would also let this influence their attitude.

Being from the UK probably helps - but I have tremendous sympathy for anyone policing under those conditions and how hard it must be to maintain balance.

does the ubiquity of guns among the public inspire you to conduct yourself to a high standard during your job?

No, because I live in the UK. I conduct my self to a high standard because it's the right thing to do.