Changed the battery in my iPhone 5s?

When we were taking out the battery, the battery was really stuck. My husband accidentally punctured the battery while taking it out. It leaked a tiny bit while it was in the phone. We cleaned it all up but should we be worried?

Yes…
1. The warranty for the phone is now void (opening the phone voids it)
2. Puncturing the battery means it is VERY likely to explode
3. Apple will not not touch the phone, you have to buy a new one…