A phenomenological model is considered where a nucleon is supposed to be "predissociated" into a virtual (Λ+K) or (Σ+K) combination. These components are realized in a "stripping" type collision with an incident pion. Reasonable parameters for the model are obtained from fitting to π-+p measurements; the value of a corresponding π++p measurement in this connection is pointed out. The "radius" of the (Λ+K) system turns out to be of order 5×10-14 cm. The same model can be applied to K production in 6-Bev proton-nucleon bombardment; it yields one component of K's with an extremely strong forward-backward peaking in the center-of-momentum system of the two nucleons.