I wouldn't go so far as to call it stealing, but I don't think it's in line with the purpose of the samples. I see them as being offered so we can decide which to buy, not whether to buy. Pulling 5-10 ounces of product, knowing you won't at least default to purchase a couple ounces of vanilla with fluffy whipped cream if you don't find something you absolutely LOVE (which you've learned from prior visits that you probably won't), isn't as bad as kicking a puppy... but I wouldn't do it.