Photographing the eclipse but I have to pee at the same time. What do I do? It's a cloudy August 21, 2017 morning and there is a solar eclipse about to happen.  I have my Sony A7R II with the Sigma 150-600mm lens and a 95mm 18 stop filter mounted on a Vanguard tripod ready to shoot the eclipse, a GoPro Hero 5 on the ground shooting time-lapse and finally a Samsung Gear 360 camera for 360  coverage.   One problem, I have to pee.  I'm no public urinator and I'm not about to pack up m...