I think actions that do not cause physical harm to others, and do not incite a great deal of fear or terror, are ethical acts of resistance against a system of animal exploitation. Convincing others to go vegan might make the future a better place, but helping animals who are currently alive means standing directly in the way of those who wish to harm them.

Even making legal changes in favour of animal protection is a slow process and too often do some "welfare" laws encourage and protect further harm and slaughter of animals, so long as it's done what they deem the "right" and proper way to do it.

As long as people continue to harm animals, we will need to do more than simply sit idly by and say "well, I don't do that, nor do I support it".