'''Basic Trope''': The OnlySaneMan[=/=]OnlySaneWoman keeps an eye on the resident {{Cloudcuckoolander}}.
* '''Straight''': Alice hangs around with the strange Bob and keeps him out of trouble.
* '''Exaggerated''': Bob is completely and utterly insane, it's a wonder he's not been locked up in an asylum rather than allowing Alice to keep him in check.
* '''Downplayed''': Bob comes from another place or culture. Alice helps explain things to him.
* '''Justified''':
** Alice is a relative or close childhood friend of Bob, which is why she puts up with and tries to help him.
** Alice was hired to take care of Bob.
** Alice puts up with Bob because she's secretly in love with him.
** Bob is a BunnyEarsLawyer and overall valuable employee. Alice is his boss, and reins him when necessary.
* '''Inverted''':
** Bob has been tasked with keeping ManipulativeBitch Alice isolated from everyone else to keep her from causing any harm.
** Alice follows Bob around so she can encourage his strangeness.
* '''Subverted''': Bob is perfectly capable of looking after himself (and isn't really that crazy), Alice is just a bit of a busybody or wants an [[{{Tsundere}} excuse to hang around with him without admitting she wants to]].
* '''Double Subverted''': Alice is still very helpful in keeping Bob's life in order.
* '''Parodied''': Alice insists on helping Bob no matter how much he protests (quite accurately) that he's fine as is.
* '''Zig Zagged''':
** Sometimes Alice keeps an eye on Bob, other times she just accepts the inevitable.
** Alice [[NotSoAboveItAll actually has her own share of strangeness]], [[TaughtByExperience but that's how she's]] [[BunnyEarsLawyer able to help out Bob]]. [[{{Reconstruction}} Sometimes it just takes one to know one]].
* '''Averted''': Bob never comes close to suffering any consequences for his shenanigans.
* '''Enforced''': Bob is initially written as a loner, however executives decide it's too implausible that he could look after himself and Alice is written in.
* '''Lampshaded''': "Don't worry guys, Alice'll clean that up"
* '''Invoked''': ???
* '''Exploited''': Bob avoids appearing too sane because he's worried his friend Alice might move on if he can survive on his own.
* '''Defied''': Alice retreats to safety whenever Bob starts any of his {{Zany Scheme}}s.
* '''Discussed''': "Ah, there's Alice and Bob. I've got no idea why she sticks by him, but I doubt he'd last long without her."
* '''Conversed''': "Are you one of those people who keeps their crazy friend in check?"
* '''Deconstructed''': Alice is essentially Bob's full time carer; he's completely dependent on her.
* '''Reconstructed''': Alice managed to teach him how to get by on his own long ago. They just hang around with each other because they're close friends as a result, Alice corrects Bob out of habit and Bob doesn't mind this for the same reason.
* '''Played for Laughs''': Alice is forever suffering in her efforts to prevent things getting too out of hand.
* '''Played for Drama''': Bob often comes close to getting them both killed and this puts a strain on their friendship.
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OK, let's all relax and head back to CloudcuckoolandersMinder.
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%% Optional items, added after Conversed, at your discretion:
%%
%%* '''Implied''': ???
%%* '''Plotted A Good Waste''': ???