One time it was a man police believed was fleeing after robbing a nearby Swiss Chalet.

Another time it was an elderly woman in diabetic shock.

Just last week it was a driver who said he was only “following his GPS.”

On the night of Feb. 19, 2015, it was Andrew Deighan who earned the dubious distinction of being one of a small group of drivers to get stuck in the Queens Quay streetcar tunnel.

Deighan surprised TTC employees by continuing to drive for 300 metres until his heavily damaged Honda Ridgeline became stuck at the spot where streetcar passengers would get off, according to a recent court decision.

Every year since the Harbourfront streetcar line reopened in 2014 a handful of drivers find their way into the tunnel and end up with their cars stuck on the streetcar tracks.

Additional signage was added in July 2015. On Wednesday, TTC spokesperson Kadeem Griffiths said even more signage is being developed to add to the current flashing lights and “Do Not Enter” signs “so hopefully there is enough so people can actually see,” he said.

He did not have a timeline for when the new signs would be added.

News reports since 2014 show at least seven instances of drivers entering the tunnel which often results in transit delays as the vehicle is towed — or extracted by crane as in last month’s incident.

At least two incidents have been linked to impaired driving.

Deighan was charged with impaired driving. At his trial, the readings of his breath samples (188 mg and 182 mg of alcohol in 100 millilitres of blood) were excluded because the police constable read him the wrong demand for a breath sample.

Deighan did admit to drinking before driving during his testimony but denied he was impaired.

“He said that he simply made an understandable mistake in driving down the streetcar tunnel. He testified that the entrance and the signs were confusing,” according to an appeal court decision.

At his trial he was acquitted of impaired driving by Ontario Court Justice Sheila Ray who found that some of the signs of impairment Deighan showed and the distance he drove into the tunnel could be explained by his admission to police that he takes anxiety medication.

“There is not only one explanation for why someone would continue to drive that whole distance, that they were impaired, almost crazy, but there is this other explanation that he has provided, which is a very credible explanation, so it is not an unexplained accident,” she said.

However, Ray’s decision was overturned last month by Superior Court Justice Robert Goldstein after the Crown appealed.

Goldstein found Ray wrongly relied on an inadmissible statement to police about the anxiety medication which was never addressed by the Crown or the defence, or brought up in Deighan’s testimony.

“There was no evidence that taking Effexor could be an explanation for some of the symptoms of impairment,” Goldstein wrote. “Unfortunately, the trial judge speculated about the effects of Effexor.”

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Goldstein also found Ray misunderstood the legal test for impaired driving.

A new trial for Deighan has been ordered.

Deighan couldn’t be reached for comment for this article.