I stumbled across this beauty through my voyage on the internet.
http://boards.straightdope.com/sdmb/showthread.php?t=510691
‘’…basically lowered onto a horse with a crane mechanism. People were know to fall off into puddles and drown, unable to lift themselves.’'
I lolled so hard reading the replies, enjoy guys 
And girls looks at @Anna
Just to clarify for some: http://www.medievalwarfare.info/armour.htm
lol … that´s just a myth - I always have to laugh about such stuff
Knights were perfectly able to move around in full plate as well as they were able to mount a horse themselves.
Here are a few examples of how agile one can be in full plate:
Seen the first one, havent seen the second one, daumn guy in his 50s just falling out of a horse like a thug
It’s Mike Loades!
Dunno how old he is but the BCC documentaries he is involved with always blow history channel out of the water.
It´s from a series of documentaries which is pretty good.
Its called “Weapons that Made Britain” and I can only recommend them if one is interested in these things.
It consists of five parts (Sword, Longbow, Lance, Shield, Armor)
Thanks man, will give it a go once I find some time!
I suspect they mnight have trouble if they fell into a river or a lake.
But! There will be cranes on a contruction site!
On the topic:
Such as…
I am pretty sure that wouldn’t be a problem if they person wearing armor can actually swim.
One men-at-arms who was fully armored fell in the Moselle and swam back to land. It’s not the fastest flowing river in the world but still worth noting.
