I'll come "clean" here, ugh, despite having been into ABDL for over a decade, I just started "messing" this year when my Daddy wanted me to do that. I wasn't used to "properties" of a messy diaper and I couldn't stand the way it was up against me the first couple of times I did it. I thought I could separate it like cookie dough or something like that, just to make it more tolerable, but... we all make mistakes in life.
So yes I have done that, with some genuine "toddler" feelings. Horrified face and all.