>>11620856You are at (0,0) on the xy grid. Small blackhole is centered at (30,0) with radius r=10. Big blackhole is centered at (80,0) with radius r=45. Even if you are pulled directly toward the big blackhole, you first enter the small one on your way there at (20,0). Then you orbit the center and end up somewhere in the overlap let's say (38,0). Now you are simultaneously beyond two event horizons. And the big blackhole pulls you toward (80,0) which is beyond (40,0) and therefore beyond the first one's even horizon.
I don't know if orbiting the center of the first one is actually possible, but we could just change your starting position a bit so getting pulled toward the big one's center would drag you into the intersection of the two.