<human>: Can you summarize the given text in a few sentences?

I need help. I'm not sure how many of you are doing the corporate 9-5 grind, but I bet you'll all know that coffee is an extremely important part of that process. On my way to work every morning, I stop by the coffee shop, get my medium drip in a paper cup with the plastic lid, and walk the rest of the way to work (~4 blocks).

HOWEVER, and I'm sure anyone who has ever walked with one of these things knows, I then proceed to spill the coffee on myself REPEATEDLY. Not on purpose, I'm not into that kind of thing, but just the slight sloshing back and forth builds up, eventually resulting in a geyser of hot coffee coming forth through the sippy hole, landing either a) on my tie, b) on my shoe, or c) on my pants. Everytime. And I will not put up with it!

Does anyone have any secret tricks on how to counteract this compounding sloshing motion? I try to put my finger over the whole, but that just results in a burnt finger. Please help!
<bot>: How do you prevent coffee from shooting out of the sippy hole of a paper cup/plastic lid while walking?