OY, am starting to feel I never should have added an amusing anecdote about Alexei's full title to the discussion...
Having spent several years now reading and re-reading Spiridovitch, a trained observer and first hand reporter who knew Alexei well for most of his life, I just don't see Alexei EVER daring to strike an adult. I don't believe it without the first hand evidence in front of me.
NOW, Spiridovitch says and I quote "Alexei was a wild child, often uncontrollable and afraid of no one other than his father." HOWEVER, he is also described as "charming" "polite" "generous" and numerous examples are cited to support this. I think the mere thought of his father's anger if he EVER struck an adult intentionally would be enough to keep him in line, not to mention the fact that Alexandra also was most strict about his manners and behavior around adults. He was, after all, being raised to be Emperor and being raised according to the strictest standards of Late Victorian and early Edwardian era manners and politesse.
I must ask at this point for the specific citations and supporting footnotes for the claim Alexei struck an adult (a WOMAN no less?) in the nose causing it to bleed.