Two reasons: Last night a cyclist was killed at an intersection along my running route. It heavily creeps me out that a person lost their life there and I think I need a little time and space before I run there again.
The other reason: what am I training for? I know I can consistently run a 3.1 distance. I've been doing that the past few weeks and I'm pretty comfortable with it. So what's next? This is the point where I need to pick a race distance and train for it. Probably a 10k. I know the one I was looking at on June 13 isn't happening for me - I have a work meeting that morning (feh!). That means I need to find something to work towards consistently and motivate me now that my challenges are all kind of tapering off until the summer.
So here's the deal: I will pick a 5k, 10k and half races to train for and lay out some training plans. I'll go for two runs this week (tomorrow and Friday most likely) and be back on track by my long run on Sunday. Then I'll have a reason to send my sorry butt out the door in the morning rather than surf the net.
As they say: it's a plan.