Shadow has had his moments of threatening others with a chaos spear if they had inconvenienced you in any way, shape or form. Though he makes sure you aren't around when that happens,he doesnt want nor can't have you get scared of him. 
If you were to ever go on missions with others,he will 100%go with you 
&despises the idea of you going somewhere alone or with someone else.Especially if it's Sonic,Shadow claims that Sonics to impetuous & attracts trouble. 