Better destroyChild() exceptions
Better destroyChild() exceptions

SpenceAcc/mortar,venkatesh3007/mortar,takn/mortar,xfumihiro/mortar,vignesh-iopex/mortar,brunobowden/mortar,hejunbinlan/mortar,georgelin422/mortar,Anusha-M/mortar,square/mortar,DmitriyZaitsev/mortar