How did you even manage that and apparently not lose your wellies.
About this time last year I was convinced I could walk my dogs down a flooded path in my short wellies. I was absolutely wrong - water past my knees, dogs had to swim so I feel your pain
I decided to walk from my house to the yard through Alfs field, rather than the shetland paddock. Got all the way across the field, then just before I got to the gateway into the pen, the dryish mud turned to sludge. My wellies stopped abruptly, and my body carried on!
Alf was remarkably unsympathetic. He and Woody stared at me from the nice dry pen, tapping their watches and asking me to get up and crack on with breakfast service!
This sounds like something a Shetland would do but when I fell over in the same way, carrying a haynet, the Fell pony obligingly pinned me to the ground by standing on my hood while he ate the hay.