Re: An ethical vegetarian?
Oh dear, I used to spout this kind of clap trap to other vegetarians. (and I am one!) Put simply most vegetarians are not Buddhists and do not subscribe to this blinkered view on what it means to be called ethical as per your insinuation. After all, you could also list insects on windscreens, weevils in cotton and the 8 spiders we eat whilst sleeping. All of which would be classed as some sort of vegetarian genocide attempt.
Most vegetarians that I know tend to take the view that they will not eat animals by way of an act of concious decision but have the understanding that some animals inadvertently expire due to the harvest of natures bounty. Vegetarianism isn't (usually) about a superiority complex, we are no better and no worse than meat eaters. In fact I will go as far as to say that the modern vegetarian diet has probably changed the landscape for the worse, whilst assisting in the deforestation of the planet and the killing of the bees. Although most vege's will also take the time to assist in replanting as well as the encouragement of preserving natural resources for the insects.
Oh and YES I do grow my own food, and I chuck the snails onto my bird table - I must be seem unethical by your high standards. Oh, and for the record I would consider trying lab grown meat, but not whilst it is in it's early stages.