I got bored and bought a Sharpie

If you want to get charged for destruction of property…. :- ...

:- * can't edit my post..

ok sorry obviously that smiley doesn't work on here lol  

Might I ask what you plan to achieve?

I don't plan to achieve anything, just a li'l voicing my mind.

Proberly not the best way to go about voicing your opinion - you would be charged with destruction of property, maccas stores are swamped with sercurety cameras and you will most likely get caught - besides you won't be helping animals, you will be brining negative attention to animal activists, best not to do it

I can understand your fustration when it comes to voicing your opinion, but have you considered more legal ways to do so?
Leafletts are a wonderful thing for example, you can purchase leafletts for $5 with free shipping here https://unleashed.qnetau.com/shop/?product=24
Or there are action packs you can order for free here https://animalsaustralia.qnetau.com/take_action/action_packs.php
I just love the conversations when I go and hand these out for a few hours,
or, if you're shy, a great idea is putting these leafletts in meat cook books in libraries!
You can also grab feedback forms from places like Mcdonalds and voice your distress about where they source their products from.
Theres petitions you can ask to be signed, and depending on the area, Animals Australia has stalls at markets you can volunteer to help run! Just give Jesse, Jane, Anthony or Karen a message and I'm sure they could help you out!

As much as I love your passion, I think graffiti, which is what effectively you are intending, is more detrimental to the cause than helpful, please consider ideas like above first!

lee....bricks work better than sharpies