Attended the 2004 tOSU@Purdue game. Bought tickets early in the season, as it appeared both would be top-10 by the time of the game. That did not play out.
Anyhow, tickets were in high demand, so we (brother, brother's wife, father) sat in end-zone. Turns out it was filled with tOSU fans. Most acted as adults, but still took everything too damned seriously. They were jerks when Purdue was kicking their ass in the first half and toned it down as they came back.
Kyle Orton, who had been held out most of the game due to injury, was inserted for the final 2 drives. The first was a 3-and-out with Purdue up 17-10. tOSU tied it on the next drive at 17. tOSU fans started to bow up and get confident. Orton came in and proceeded to take Purdue 80 yards down the field - going 6-6 - for the go-ahead TD with 2:25 left. We Purdue fans were going bananas. We might have gotten shanked if we were in Columbus.
Anyhow, after the Purdue win, the folks around us were as cordial as they could be. Which was not very.
As my we walked back to my brother's house (reasonable walking distance from the stadium in West Lafayette), several clusters of tOSU "fans" offered to fight us, etc. My group took the high road, which was the appropriate choice. There are more details: foul language, "space" violations, etc. But I will spare that...
Suffice to say, this was a proper indoctrination for when those assholes visited Austin in 2006. Those "fortunate" enough to visit Columbus in 2005 had it worse, I gather.