It is not unusual for such examples to occur.
It happens on approach to landings, also.
The CDAS towered field I fly out of is the third busiest in our state
(100k+ operations) and is the training base for a large university.
Students and experienced pilots alike have come close on multiple
occassions in the 25 years I have been flying here.
This seems to have happened more frequently since the field was dropped
as an FAA staffed facility to a contract facility.