The War Is On!!!

I have completely had it with the squirrels. I transplanted my lettuce out in the window boxes on my back porch and covered them with bird netting. All was good, then the lettuce started to pick up and I needed to raise the netting. I used wire hangers, bent them in a U shape and inserted them upside down to support the netting and to allow the lettuce to grow. For the past three days I keep finding massive holes in the boxes!!! I wouldn't be so mad if they took the lettuce with them, but Noooooo, them just dig and then leave a half wilted lettuce plant around in the box! I cannot find how they are getting in. The netting is tucked in on all sides, there are no holes and I also placed chicken wire - spoke side up in the window empty adjacent boxes. I am getting really, really pissed. Today they got into my German Thyme. I can't stand it anymore.
I have tried the "Squirrel Be Gone" deterrent and that so doesn't work. I have a packet tied to the Shepherd Hook were I hang suet and there the squirrel was, waltzing around the pack and noshing on the suet.
I think this is a job for some Thai Hot Pepper spray.
Round 1 goes to the squirrels.
The next round is mine.