Literally just mainlining marketing material straight into whatever’s left of their rotting brains.
I'm not sure if scallops can run... But if you mean something like a mollusc, for example a snail, then I think it depends on which organism it is. I think a snail probably does feel fear yes in a very primal way. A bivalve like a scallop I'm not so sure, they have very basic nervous systems. An octopus I think is capable of fear and other more advanced emotions too, most likely. However, I think when we ascribe emotions to these animals we are anthropomorphising them. We have no way to know what their experience is like and we are sticking our human labels on them. Especially for a group such as molluscs, which diverged a very long time ago from the lineage that led to us. The feeling of fear, the understanding of danger and need to get away from it could be very primal and exist in many animals, but they may also feel it very differently to how we do. For example ants, I imagine a worker and does not feel fear for itself but rather the colony.
Unicellular organisms mostly move on the basis of concentration gradients, towards food and away from toxic things or predator signals. When one is struggling and being engulfed by a hydra or other unicellular organism, I don't think it feels anything no. I think it is just trying to move away from the predator because it detects a molecular signal that it is "programmed" to move away from. By programmed I mean that behaviour is encoded in the complex interaction of the many systems that make it up, such as through the concerted action of it's receptors, signalling pathways, enzymes, genes etc.
Rocks and water are not what I was talking about. Take for example cell-free translation systems. These are basically all of the contents of a cell but without any of the membranes. Like empty a cell into a (small) bucket. They still perform all of the biochemical reactions that took place in the normal cell. But they are not in a sack. There is no unified "thing" and it doesn't move. If you did that to a paramecium, could that liquid still feel fear? It cant move away from anything. Is it alive? What makes something alive? Life is ultimately the sum of many complex biochemical reactions, but no one part of it is alive. Enzymes themselves are not alive surely. One single neuron is not alive.
If you had a human brain in a jar and, for arguments sake, it could still think as normal. It is intelligent and sentient, but it cannot replicate itself. But a virus, which is still much more simple than the brain in a jar, can. When you say that rocks don't make more rocks, you seem to imply that the quality of life is in replication.