No time to stretch?

I help in my daughter's classroom each week.  Usually that morning is very rushed, getting a run in before 6:30 am, breakfast, lunches, dogs feed, papers signed for class or checks to write for this, that and the other, seriously busy at our house.  Today I did not have time to stretch after my run.  When I got to the classroom my hamstring just yelled "OMYGOSH I AM GONNA DIE".  I picked up my reading group and took them to the area  I read with them and then grabbed a basketball to sit on.  The kids did not even notice that I was sitting on it.  I think I have now found the cure for hamstring pulls, sit on a basketball and move around a little!  Teachers were staring other classroom helps were staring I did not care it felt good and it helped stretch me out.  So if you think you dont have time to stretch, get creative.