"negligent" means doing something through carelessness - it has nothing to do with whether or not it was done on purpose - hence the term.
How you can infer my man-management skills or otherwise from application of one of the most clearcut sections of QRs is beyond me.
Clearly your dad kept you from joining the army because he realised that you were a bit of a sensitive chap. And I agree with you - thank the lord he did stop you from joining the army - I wouldn't want someone working for me who called someone a "stroker" just because he disagreed with his point of view.
- insults - last resort of someone who wasn't any good at giving or taking banter in the first place.