[Well, that assessment honestly isn't too far off. Harmful, no. Loon...probably.]

So it is!

[And then he rather clearly has an OH, RIGHT... moment mentally, hold on - snapping to attention properly, then!]

My apologies for not introducing myself properly! My name is Ishimaru Kiyotaka - good evening, sir!

[He bows from the waist as he says it, keeping his hands snapped down to his sides, though he straightens up fairly quickly.]

It's good to meet you!