Many third seat lone calls can be stopped, but to do so, the hand must be played correctly. One reason the third seat is such a hard spot to make a successful lone from is that the dealer has the ability to create a void in a suit. To take advantage of this, the dealer should try to discard next and their partner should try to lead next. This may allow the dealer to ultimately either trump or over-trump the first lead, therefore stopping the lone.
The dealer is sitting in the South position. West orders the 9 of clubs into the dealers hand and calls alone.
Having picked up the 9 of clubs, South then discards the 10 of spades. His partner in North leads a spade. The maker(E) plays his ace. South trumps the ace, stopping the lone call. It is a simple plan that is also very effective.
In the hand above the score is 9 to 7 in favor of North/South. The dealer is in the North position, has just dealt and turned up a 9 of diamonds. West orders the dealer to pick up the 9. After the dealer(S) places the 9 in his hand, he correctly discards his only heart.
South leads the 10 of hearts (next). The maker(W) trumps the heart with the queen. Things are not looking good for the N/S team. A successful completion of this lone and E/W will win the game.
But wait, North over-trumps with the king and N/S are still in the game!
On the next hand N/S makes the final point for the win.
In this example the dealer is sitting in the South position. He deals and turns up the 9 of clubs. East orders the club into the dealers hand. The dealer(S) correctly discards the queen of spades.
North seat leads the ace of hearts. The maker(E) takes the trick with his ace. He then lays down the rest of his cards collecting 4 points.
In euchre, seemingly minor errors such as leading the wrong card can make a big difference in the outcome of a game. For example, in this hand, two good methods of stopping a lone call are ignored. First, next is not led on a third seat lone call, and second, a single ace is led into a lone call. If defended correctly, this lone call would have been stopped on the first lead.