▁background ▁and ▁SE AL ▁training ▁are ▁still ▁evident ▁in ▁his ▁daily ▁routine ▁and ▁hab its ; ▁he ▁still ▁takes ▁a ▁" N avy ▁show er ", ▁keeps ▁his ▁house ▁im pe cc ably ▁neat ▁and ▁tid y , ▁maintain s ▁a ▁fit ness ▁reg imen ▁and ▁is ▁extremely ▁sensitive ▁to ▁sound ▁even ▁when ▁as leep . ▁His ▁military ▁manner isms ▁are ▁also ▁apparent ▁in ▁the ▁way ▁he ▁approaches ▁his ▁cases , ▁some ▁of ▁the ▁ling o ▁he ▁uses ▁and ▁his ▁ability ▁to ▁remain ▁calm ▁even ▁when ▁under ▁inten se ▁pressure , ▁and ▁he ▁is ▁frequently ▁mock ed ▁by ▁D anny ▁for ▁his ▁lack ▁of ▁" human " ▁touch . ▁In ▁later ▁seasons ▁he ▁becomes ▁more ▁aff able ▁around ▁the ▁other ▁task ▁force ▁members ▁and ▁would ▁be ▁seen ▁crack ing ▁j okes ▁with ▁other ▁team ▁members . ▁Despite ▁his ▁sto ic ism , ▁he ▁has ▁a ▁soft ▁spot ▁for ▁children , ▁especially ▁his ▁adopt ive ▁nie ce ▁Joan ▁and ▁D anny ' s ▁children ▁Grace ▁and ▁Charlie , ▁both ▁of ▁whom ▁often ▁refer ▁to ▁him ▁as ▁' Un cle ▁Steve ', ▁and ▁is ▁extremely ▁protect ive ▁of ▁his ▁younger ▁sister ▁Mary . ▁ ▁Much ▁of ▁McG ar rett ' s ▁interaction ▁with ▁D anny ▁outside ▁of ▁work ▁usually ▁begins ▁and ▁ends ▁with ▁the ▁du o ▁b ick ering ▁over ▁trivial ▁matters ▁or ▁good - n ature d ly ▁mock ing ▁one ▁another ; ▁there ▁is ▁a ▁running ▁g ag ▁in ▁the ▁show ▁where ▁various ▁characters ▁would ▁comment ▁on ▁how ▁the ▁du o ▁b icker