Flat tires - Grrrrrr!

Right after getting Gabby off the bus on her first day of school, Curtis realized I had a tire that was low.....we went to the closest Exxon and by the time I made it there, it had gone completely flat! Unfortunately, it couldn't be patched and I needed a new tire.....luckily, the service station had a used one that was in good condition that they gave me for $25.

Then today on my way to work, I get a call from Curtis.....guess what, he's got a flat tire too! Two in one week? Again, it can't be patched......luckily, he made it almost there and a co-worker came and took him the rest of the way to work.....but we both had to take a 2+ hour lunch break so that I could go get him and his tire, go get a new one mounted and balanced and then take him back to his car......no used tire this time, had to pay for a new one!
Now i'm worried because things come in 3's......I'm crossing my fingers that the 3rd one is just a patch! oh, and my mom is making a trip to her sister's tonight.....I'm praying it's not her that's the third!

I HATE flat tires!!!