Most of the time. Sometimes they are full of mindless boring work for weeks at a time. Often they don’t work and that gets frustrating, but overall they are awesome. There are always moments of incredible fun, when you are vacuuming up bees with a modified dustbuster or extracting DNA and making it visible, or finding a rare bug, hiking up to your thighs in mud through a rainforest, or electrocuting the water to catch fish, or getting to burn things. I could go on for ever, but you get the point. Mostly they are really really really really reallllly fun.