Nick Clegg's visit to Solihull College hit a bum note when a young man lost his trousers as he approached the Deputy Prime Minister for a selfie.
It was unclear whether the incident was the result of a wardrobe malfunction or a deliberate attempt to embarrass the Liberal Democrat leader.
Mr Clegg patted the teenage boy on the shoulder and continued to board his campaign bus, which was preparing to leave following the visit.
Nick Clegg said he has no plans for a new career after a member of the Question Time audience asked whether he had "plans for a new job next week when you become unemployed".
"Charming," he shot back. "No I don't."
The Lib Dem leader has insisted opinion polls that show him in danger of losing his Sheffield Hallam seat do not reflect the reality on the ground.
The Liberal Democrat leader has said he "very much enjoyed" tonight's leaders' Question Time.
While discussing possible coalition deals both Ed Miliband and David Cameron spoke about negotiations with Nick Clegg 'in a dark room.'
Responding to a question about the behind a scenes deal Mr Clegg said: "If either of them still think they're going to win a majority, they need to go lie down in that darkened room."
Nick Clegg is doing well as the third party leader on Question Time, ITV News Political Editor Tom Bradby says, but is getting less of a grilling from the audience.
This is like the most testing kind of X Factor. Nick Clegg doing quite well, so far, though he has had an easier ride than Ed M.
A few too many party lines, but he's generally making his points well.
Nick Clegg has said the Liberal Democrats will not enter a coalition with any party that wants to implement cuts to education.
The Lib Dem leader said both the Conservative and Labour policies on education "amount to a cut".
"I cannot be more clear with you. The Liberal Democrats will not go into any coalition, any government, we won't sign any coalition agreement if either of those parties insist on those cuts".
Nick Clegg has reiterated he "got it wrong" on tuition fees after the last election.
Asked how his party could be trusted after breaking their vow on tuition fees, Clegg retorted with a smile, "Nice, easy question to start".
"When you make a mistake in politics, just as in life, in politics just as in life, you can't do exactly what you want," the Lib Dem leader said.
"I was absolutely between a rock and a hard place five years ago on that particular policy," he added.
The three leaders have arrived for tonight's leaders' special Question Time in the final televised set-piece before the General Election.
David Cameron, Nick Clegg and Ed Miliband will not be on stage at the same time and will not debate directly with one another.
The Liberal Democrats would insist on an increase in education spending in any coalition deal Nick Clegg has said.
The Liberal Democrat leader says he would not enter coalition with any party that does not agree to protect per pupil funding from nursery to 19-years-old, in real terms, by the end of the parliament.
I can confirm a Liberal Democrat red line - a pre-condition for Government - is increasing spending on education. The Liberal Democrats will not allow our children and grandchildren to pay the price of this generation’s mistakes.
So the next Government must increase spending on nurseries, schools and colleges. That means education spending must rise with both prices and pupil numbers. Without investment in education, there can be no deal with the Liberal Democrats.
Lib Dem leader Nick Clegg will say his party are fighting '60 Eastleighs' on the campaign trail in the Hampshire constituency today.Read the full story ›