The Mets' adorable ballboy ran out to the umpires to deliver them water

When the sun's blistering temperatures are too much to handle, the first rule of thumb is to make sure you're properly hydrated. Sometimes it's as easy as a quick trip to the concessions stand -- or, in this case, an adorable ballboy delivery.
In the top of the third during Friday's Cardinals-Mets game, the umpires were greeted by a very cute ballboy who made sure the officials were staying hydrated:

They were ever so thankful for him running out and giving the gift of water -- and check out that hustle.
Too cute.