Friendly reminder...
Taser defense: taser-proof vest and pants aren't difficult to make at home. All you need to do is layer conductive and nonconductive materials. An outer layer of cotton to camouflage, middle layer or two of very thick aluminum, and inner layer of thick rubber would likely short out your average taser. If you're shot with this on, pretend to be shocked and drop to the floor unmoving so they don't figure to shoot you in the head.
Bullet/projectile defense: concealable ballistic armor can be purchased online and will stop certain guns, and will drastically reduce the damage done by non-lethal rounds such as rubber bullets, sand bags, and H2O rounds. If someone is opening fire in your area, protect your head at all costs as nonlethal munitions can and have caused fatalities when they hit an individual in the head. You may want to keep a helmet in a backpack.
Sonic weapon defense: aside from the obvious ear protection—ear plugs and noise canceling headphones—sound can also be deflected or absorbed. When I was a little kid I visited NASA's Ames research center at Moffett Field. Among the things I got to see was a sound room, in which cones of foam lined the entire surface and prevented nearly all sound from reflecting. While I don't think this can be exactly duplicated, there is a certain kind of mattress cover which may be able to replicate (to a lower degree of success) the same noise canceling effect. They look like this:
I've not had a chance to test this, but in theory it should decrease the dangerously high decibel levels.
Microwave weapons: I've been thinking about this one for the past few days, and I think the best defense would be a bit complex. Emergency foil blankets can be found at most hiking supply stores, so I'd pick up one of those. Sew onto one side a nonconductive material such as cotton with handles on the cotton side. Attach to the aluminum insulated test jumper leads, and on the other side crimp on a grounding clamp. If you're worried that the microwave weapon is about to be activated, clamp onto something grounded like a fire hydrant and wrap yourself in the blanket aluminum out and cotton in. I've obviously not had a chance to test this, but it could work in theory.
Do not deploy the blanket until you're 100% sure it's properly grounded.
Dazzler (laser blinding weapon): Don't think I'm paranoid, this has already been used in Iraq for several years. It would seem the best way to deal with this would be to have welding goggles. If the weapon is activated, flip down the lenses.
Why go through the trouble? Because as soon as you run, you've failed at whatever you're attempting by protesting.
If I've missed anything, let me know.