Scottish Labour's health spokeswoman Jackie Baillie accused the SNP of "picking a fight" with Westminster.
That's picking a fight he doesn't need to pick, and it's a fight he can't win.
"We are not picking a fight with anybody, " she told the BBC's Andrew Marr show.
They can also trade weapons and other assets, offer advice, or pressure someone into picking a fight with a third party.
Particularly provocative was the fact that chimpanzees used certain gestures only in certain situations--trying to get another chimp's attention, for example, or playing, or picking a fight.
Given the central bank's clout, picking a fight over Sberbank's future seems more likely to bring good publicity for the fund managers involved, rather than actual results.
Mr Cameron's advisers insist that he is not picking a fight with Francois Hollande who, they claim, is much more in tune with British policy than his rhetoric suggests.
As state controller (she is another victim of term limits) she has been a contentious figure, even picking a fight with her fellow Democrat Governor Gray Davis over the electricity crisis.
But after picking a fight with the resources sector over his plans for a super tax on their super profits, the polls slumped again - especially in the mining states of Western Australia and Queensland.
Turkey's President Suleyman Demirel is no Slobodan Milosevic but, egged on by a belligerent chief of staff and a chorus of raucous politicians, he looked ominously capable last week of picking a fight with Syria.
But mainly it is because picking a fight with an all-important trading partner, and the biggest foreign holder of American public debt, does not seem a bright idea when you are the one who will be blamed for the economic consequences.
For its part, PokerStars said in a statement that its suitability for a gaming license is a matter for expert regulators to determine, not self-interested partisans picking a public fight.
Ryan Callahan had a goal and three assists as the Rangers snapped a two-game losing streak, picking up two vital points in their fight to hold onto a playoff spot in the Eastern Conference.
At the final pre-fight press conference Wednesday he said Mayweather made a mistake by picking him as an opponent.
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