Yeah I've been doing it for years now. Feels a bit cheeky sometimes because most of the work I do is garden maintenance. I end up eating a portion of the plants (weeds) I'm being paid to remove. There are some great and unusual snacks to be had in the garden from wild strawberries, ransoms garlic, young tender dandelion, etc etc..... Some edible weeds are also incredibly good for you and can contain beneficial properties not normally found in more commercial foods. Dandelion is great for the liver and kidneys, so's milk thistle.
I've spent many a dinner washing a wild garden snack ready for a salad with olive oil, lemon juice and balsamic vinegar.