Dep gig on guitar with a punk/ska/rockabilly covers outfit in a city-centre pub. When I arrived at the agreed time, there wan't even room to jam my amp between the drum kit and the main door so the drummer had to move over a few inches. There was so little room in front that I soon gave up on setting up a mic for BVs, or even using a guitar stand, but not before I trapped my RH pinky in it, causing a bleed that (in the absence of plasters) I was obliged to stem with gaffer tape. There was no room for my pedal board but I didn't think I could live without slapback echo, so I pulled my delay off my board and installed a battery (which involved unscrewing the base) and stuck it on top of my amp. Then I found my clip-on tuner had a dead battery, so I had to replace that - fortunately I had a spare.
By then it was kickoff time, and as we launched into the first number, I realised I was standing right in front of one PA speaker. The vocals were at apocalyptic volume (as was the double bass - visible speaker cone movement anyone?), so I moved to one side, ending up with one foot just in front of the flightcase that had my amp on it, and the other resting against the front of the bass drum. The volume there was just about tolerable through my earplugs, but anyone coming through the door still had to squeeze between me and the folks leaning on the bar.
I hadn't had a rehearsal with the band (although I had watched YouTube clips and seen their gig the previous week), and the band plays everything very fast, so what with all the other factors, I can't say I gave a particularly slick performance. The crowd loved it though.
I realise it's possible be too precious about 'your' sound, but this venue was a bridge too far in terms of the number of challenges to playing well. I'd probably dep with the band again, but not in that pub.