Sandon is coming up 5months and today has really suprised me as he has growled twice, something he has never done before. My parents came earlier and gave him a chew treat, he was sat eating it, my dad leaned down to stroke him and he growled, although we weren't taking it away he has never been possessive of food so far. Secondly this evening my 4yr old went to stroke him and he growled again which to be honest is a bit worrying they have a fantastic relationship she never pushes the boundaries with him and knows to leave him when he is resting however today for some reason he has growled twice. Is this just his age? Something I need to keep an eye on or something I should be telling him off for?