Alright this is weird...
yesterday I got in my mini s to go to work.. no coolant leaks..
I drove the mini s to work yesterday, 50min drive.. no probs.. got to work.. parked it at 8:30am.. at lunch i went and got some food.. nothing leaked in that time.. then about 4:30pm i parked the mini inside a warehouse until today.. I just took the mini out of the warehouse and there was a little coolant fluid.. i inspected the mini and couldnt find any leaks or anythig... opened up the coolant res. to make sure it was the same blue coolant and it was.. the coolant in the reservoir was at the min line..
The only thing I can think of is that when my grandmother got it serviced they put too much in it and it just overflowed the excess...

Opinions?

 

I believeif it overflowed, it would have been with the motor running making heat....I guess sitting might be possible for it to blow of excess...just does not seem likely IMO.
I would guess that it is possible that the drops you saw was from a leaking water thermostat housing, very common, and hard to spot....unless you put something under the car, and look at it after you move the car. Keep an eye on the fluid levels.....
Good Luck!!