Nothing like toodling around in a high-performance jet without the windshield to start the morning. Or end the afternoon, as the case may be. Bonus: the guy claims to have flown it that way at Mach 2!
On re-examining the photos, I think maybe this was actually some sort of weird ejection seat test. All the photos, save the one where it's departing, show the plane without the rear seat. Those crazy Russians!