I watched this red ant walking over the Dandelion flowerhead:
Then it suddenly nose-dived deeper into the flowers.
After a few seconds a tiny Ichneumonid appeared, with the ant holding onto its rear leg. A brief struggle ensued and the wasp made off, apparently none the worse for its experience.
The Ichneumonid was probably looking for moth larvae deep in the petals, but the parasite got more than it bargained for. No matter what you are in wildlife terms, you're either food for something or feeding on something else.