Most dangerous thing round my way are the lochs (salt and fresh) rivers and streams, the latter especially when in spate.
Once my fishing chum and I headed off up a local river very early in the morning as there was plenty water and a good chance of a salmon.
The route we chose involved crossing a stream to get to the bank with the best opportunity, the stream had quite a bit of water in it so off came the wellies and over we went then off and up the main river for a couple of miles. Whilst we made our way up stream it rained and rained and the water in the river rose dramatically. So much so that fishing wasn't viable and we risked being cut off. So we turned and retraced our steps until we got to the spot we'd waded the burn on the way up. No chance.
This burn flows off the very steep flanks of a munro sized mountain and the ground above our rough location too steep to be navigable with the kit we had, for the most part near vertical rock heather and reeds. The main river; just a huge torrent.
So, it was either a walk up and over a munro in a gale from just a little above sea level avoiding the steep ground high into the low cloud, with no map and compass, or a 6 mile walk back up the river on very rough ground to an old estate track, then a further 5 miles down the track to an actual road, on the other side of the hills we were in among, stranding us some 25 mile from the car when we got there (only 15 from my house it must be said). We deemed neither option viable given the circumstances.
A little up stream where the one time wadeable stream/burn had now burst it's bank there was a spit of ground (the previous bank) high and dry mid flow running about 10 to 15 meters in length that seemed to offer a possibility of reprieve. Wade in at the top of the spit, walk down to the downstream tip and wade to the far bank.
So thats what we did, except for very nearly being washed away getting on to the spit and then realizing that it wasn't going to be easy getting off or going back.
We stood on that spit of ground for half an hour stranded with the water rising all the time. We weren't alone; there was a stoat stranded there too. In the end we made it both, the stoat as though not to be out done made it too, in a single leap of faith, but it was as touch and go for the little fellow as it was for us. The stoat made it to the far side but was stuck below the bank for a time, it made it by climbing straight over the overhanging bank. Tough tough wee beastie that stoat.
My pal and I, suffice to say, learned a lesson never to be repeated, I can't really talk for the stoat but I reckon it was as relieved as us