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I'm advised that, in order to avoid leaving food out, especially including delicious legumes, my "public log" is to not include more than a date, number of checks (or number of cases, though number of checks is more objective), and a vague block reason.
Block reasons should be limited to "Disruption", "Probable socking", "ArbCom request" and "IPBE request" If I decide to go willy-nilly and checkuser people randomly, I'll put in "went insane".
If you'd like to request a check, please see Sockpupptetry investigations. IPBE requests are typically done via talkpage. If there isn't a rangeblock affecting you, I won't likely grant IPBE.
Checks used to assist other checkusers, such as second opinions, are the responsibility of the original checkuser and not logged here. You'll want to check with the original CU.