Future Ted: [v.o.] After his parents had gone back to Minnesota, Marshall got the results of his test.
Dr. Stangel: I'm afraid I have some very bad news, Marshall. Judging from the results of your test, it is... It is very unlikely that you'll be able to father a child.
Marshall: Oh, God.
Dr. Stangel: I know, I know.
Marshall: It's just...
Dr. Stangel: Now, in some rare cases, a regimen change can fix the problem, so I'm recommending a spirited cardio routine. Preferably with a partner, involving any light-based firearm activity in the Tri-State area. Poughkeepsie, for example. Have you heard of the gentlemen's sport known as laser tag? [Marshall pulls off Dr. Stangel's beard] Surprise!
Marshall: Damn it, Barney!