Guttered

The act of putting on a hard hat after leaving it upside down, then getting showered with the cold residual sweat that has accumulated from the sweaty padding in the hard hat.

Ex1: "I put my hard hat upside down when I took a break and when I put it back on I got guttered!"
Ex2: "Glad I saw the puddle of sweat in my hard hat before I put it back on, I would've got guttered!"