When I say it like that and really think it through, I can see that it is more than illogical. It is
OCD and OCD is fear. Fear of the unknown,
and the uncontrollable.
In the situation you described above there is zero risk of infection. None. At all. You preceived there to be a risk, but I can assure you there was none. You have to know the facts. HIV is a fragile virus. Becoming infected by casual or enviromental contact is slim to none.