Since when do "kids throwing stones" manage to reach inside Israel? They sure have strong arms. No only that, those rocks can explode through roofs and kill people. Never heard of exploding "stones" before. Your assertion is as ridiculous as you are.
Palestinians report IDF airstrikes on Islamic Jihad targets in southern Gaza Strip (Haaretz)
from the article: Hezbollah 'refused Hamas request to bomb Israel in Gaza war'