David Spade and Reese Witherspoon
David Spade has slammed Reese Witherspoon\'s alleged \'Do you know who I am?\' line with arresting officers

Rules of Engagement star David Spade has given Reese Withspoon a reality check in the wake of her husband's arrest for drink-driving.

The comedy actor said that he was surprised to hear the Hollywood actress played the 'Do you know who I am?' card when police arrested her husband, Jim Toth, on suspicion of driving under the influence.

"Reese is falling to pieces - is that what I'm hearing?" Spade told TMZ.com.

He said that if Witherspoon has to use the "I'm a really important celebrity" line to get out of an arrest then she was not "that much of a big deal".

He said: "If you have to explain to someone you're famous, then you're technically not that famous.

"The general rule is that when you say 'don't you know who I am?' the answer is most likely no."

Witherspoon lost her cool when Atlanta police pulled over the couple's car and allegedly went into "celebrity entitlement mode".

According to sources, the 37-year-old American sweetheart said to the arresting officer: "Do you know who I am? You're about to find out who I am."

She was jailed for disorderly conduct. She has since apologised, claiming she was drunk at the time.

According to celebrity expert Dorothy Cascerceri, Witherspoon's image will have taken a knock from the scandal.

"She has always come across as humble and sugary sweet but now she has left some fans with a sour taste in their mouths," Cascerceri told the Daily News.

"One incident like this won't damage her good-girl image permanently but if more incidents like this occur, she may lose the love and support of fans."