I think..... Texas is a free range state, so you actually have to fence cows out... technically.
But to address your specific question, if you trespass to fix a fence, no matter the reason, you're still trespassing. If you tear down a replace a fence that you don't like because it's in disrepair, and it's not on your property, ya that's not really legal.
But to address your specific question, if you trespass to fix a fence, no matter the reason, you're still trespassing. If you tear down a replace a fence that you don't like because it's in disrepair, and it's not on your property, ya that's not really legal.