When we were in Vietnam we went on a tour to the Cu Chi tunnels from the Vietnam War. However, the tour included a visit to a nearby cricket farm on the way back. We had the opportunity to sample crickets both on their own and as a filling in a spring roll. Both were delicious. Most people at least tried it though most only ate a couple. It was only me and an Aussie guy who devoured them. They were delicious, and deep fried were not too dissimilar to popcorn really.
We then went on a moped food tour in Ho Chi Minh and sampled some interesting animal based products, e.g. other insects, frogs, etc. The most disturbing thing to Western tastes, however, was the local speciality of duck egg. Not that strange you might think as we consume them here. These duck eggs had been fertilised and duck ‘fetus’ allowed to begin to grow inside. Only two of us were brave enough to try it, me and interestingly another Aussie. Hands down it is the most disgusting thing I’ve ever consumed. It tasted vile and looked vile. You could clearly see the form of a baby duck. The remaining ‘yolk’ was veiny and apparently in some you even get the odd feather. I tapped out after eating barely half of it. The Aussie guy finished his but we were both boaking afterwards. The guides were devouring it.