Ailment:
noun. 1. a physical disorder or illness
I'm not sure I'd like to be described that way if I was pregnant
Personally I haven't noticed much, if any, difference in terms of ride comfort between 30 and 50 unless the road surface is awful, but as I said, that's not where I take issue. All the roads I have issues on are perfectly smooth (or as good as they come in the UK ), unless you are aiming for the drain covers...
It's just hard to understand how people feel incompetent above 30mph on a straight, open road, but I feel that in the majority of cases it's just stubbornness, not a lack of ability. Either way, it's no excuse for not letting someone pass.
If you're walking on the pavement slowly (for whatever reason) and someone wants to get past, you wouldn't continue to block the path and not let them pass, would you? Maybe you didn't see the person behind you, but in a car that is not an excuse, so you can not claim ignorance.