The first one isn't that rare, it happens. Otherwise ... well, here's a picture that's worth a thousand words:
Granted, it was the 1st vs. the last in the league at that time, and with a reasonable skill difference. But that's just about it ... I don't care who you are, nobody scores 2 goals after the 85 minute with 4 (as in ****ing FOUR) men down. The absence of goals for the team with 3 strikers is just the tip of the iceberg.