So I made a simple yeast starter last night by adding 3 cups of water to .75 cup of dme. Let them boil for about 20 mins and cooled down to pitching temp. Put them in a santized growler and added the yeast. It was Wyeast 3068. Santized some tin foil and placed it over the growler with a rubber band. Swirled it around a few times last night and went to sleep. This morning, it must have grown so much that it leaked out of the top. Few questions. 1. Do you think there is a risk of infected the starter from the leak? 2. I dont plan on brewing until Sunday, which is 4 days away, can it be kept out and still good for sunday?