I nearly forgot to mention this but maybe someone in the music business will be able to shed light on it.
Mark had some issue with his microphone during Romeo & Juliet on Dublin, it looked like he was getting feedback or something from it - he gave a few scorned looks at the sound guys on the side of the stage & then in between verses he stepped away from the microphone & said something along the lines of " f$%k me ", you can see it on the video here at 1.40 & 4.40
He wasn't happy with something but when he finished the song they didn't replace it either & continued to use it for the rest of the gig??
Techie boys & girls?
?
By the way, MK's voice is the best I've heard it in years