Martial Monk can take any fighter bonus feat without qualifying for it. (Dragon #310, page 45)

Spoiler: Text from Dragon #310
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Martial Monk

Gain: Fighter bonus feat list to choose monk bonus feats (at 1st, 2nd, and 6th level); Intimidate is a class skill.

Lose: -1 skill point per level (and -4 skill points at 1st level); no Knowledge skills as class skills.

Multiclass Options: This monk can multiclass between fighter and monk with no penalty.

They then go on to provide a sample Martial Monk.

Half-Elf
Monk 2/Fighter 2
BAB +3
Str 14 | Dex 15 | Con 12 | Int 10 | Wis 14 | Cha 8
Feats: Dodge, Improved Unarmed Strike, Mobility, Spring Attack, Two-Weapon Defense, Two-Weapon Fighting, Weapon Focus (Quarterstaff)


Now, what does the Monk's description say about qualifying for monk bonus feats?

"A monk need not have any of the prerequisites normally required for these feats to select them."

"But surely that applies only for the six monk feats, not the fighter bonus feats as well!", you may say.

Ten points to Gryffindor if you can find which feat the sample character can't have possibly gotten without being exempted from its prerequisites.

Spoiler: The Answer
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Spring Attack
Prerequisites
Dex 13, Dodge, Mobility, base attack bonus +4

The sample monk/fighter has a BAB of +3 and thus can only have Spring Attack if the prerequisite was waived.


Let's go back to that part about not needing ANY of the prerequisites.

You can take any Fighter bonus feat at first level, and second level, and sixth level.

Abuses:
-TWF/ITWF/GTWF by level 6 instead of +11 BAB and 19 Dex
-Whirlwind Attack at level 1 without the enormous feat tax
-Robilar's Gambit at level 1 instead of +12 BAB
-Defensive Sweep at level 1 instead of +15 BAB

There are many more ways to abuse this.