Sadly, there is usually not a line of people waiting to donate blood. There was right after 911, but it didn’t last.
BTW, those of you who agree-or disagree-with the new rules (very slightly) loosening the rules for gay blood donors, this would be a good time for you to reconsider whether YOU should give blood. Most of you don’t. I can’t(five year deferment due to cancer treatment). Wish I could.