I managed to knock a galss full of G+T (with ice) all over myself once. Was a little messy. I was in jeans and a shirt. One of the delightful cabin crew saw it and came with PJ's to change into, a hanger for my soaking jeans and shirt and some paper to clean up.
I think that next time I may ask for my drink in a beaker with a nozzle and also a bib so that I donot amke such a mess......
FD