Full Idea
The so called laws of association are not laws really because, if we follow them, every representation can bring in its train whatever representation we choose, the choice of one rather than the other remains unexplained.
Gist of Idea
Associations are not lawlike, because we make arbitrary choice of which representation matters
Source
Simone Weil (Lect 1: Materialist Viewpoint [1933], p.63)
A Reaction
I suppose if you saw several representations or contiguities simultaneously you would face this situation. It doesn't seem plausible that there are 'laws' of association, but something like it obviously occurs.
Book Reference
Weil,Simone: 'Lectures on Philosophy' [CUP 1978], p.63