Kirk Hammet was rather unlucky during Metallica’s show in Milan a few days ago when he slipped on his wah pedal and fell on the floor. It was Kirk himself who shared this incident on his Instagram account where he wrote: Ummm- I slipped on my wet wah pedal. It rained so much I felt like I was playing guitar in the shower”.
https://www.youtube.com/watch?v=U9ATaMPbj1E