If you just get it through exposure at an unknown time, then you are potentially exposing vulnerable people during the contagious part of the pre-symptomatic period.

If you are talking about controlled deliberate exposure and managed isolation afterwards (and I guess refusal of medical care if this was prior to their protection from the vaccine) I guess that is different, except that it would also have the externality of contributing towards generating new variants and potentially breaking vaccines for everyone else if you slipped up in your isolation.