^thats how most casual fans are....if the team is hella winning or its close they'll watch till the bitter end, but if your team is losing by alot they'll give up.
me on the other hand, I'm sick of fucking blackouts, so I watch Raiders games all the way thru. I'll switch channels if another team is playing to see the score, but besides that I'm finna leave it on till the 5th quarter is over