What agreement did Schmeiser have with Monsanto? He never interacted with Monsanto to get the seeds, right? He intentionally collected and replanted them, but t

What agreement did Schmeiser have with Monsanto? He never interacted with Monsanto to get the seeds, right? He intentionally collected and replanted them, but that didn't involve any interaction with Monsanto, either. I guess he purchased roundup from them. Does that involve some agreement? Or are you saying there was an implicit agreement because he chose to live in a country with patent laws he should have known he was violating? It does seem what he did was illegal given our patent system (regardless of whether it should be), but your wording seems to imply more than that.