Allen Park -- Lions players have made some headlines this offseason with thrill-seeking stunts. Linebacker DeAndre Levy wing-walked on a bi-plane, and quarterback Matthew Stafford went skydiving during his honeymoon with wife Kelly Hall while in New Zealand.
Lions general manager Martin Mayhew did not find out about either event until after they were completed. He said he would prefer a heads-up in the future.
"I think we need to work on that a little bit and keep our feet on the ground and stay safe," Mayhew said. "I think that's something we need to be aware of. It's not a big deal until something bad happens."
He said he did not watch Levy's wing-walking video.
"I couldn't bear to watch it," he said. "I saw the picture, and that was all I needed to see."
Bottom line regarding future thrill-seeking pursuits among Lions players?
"I'd rather them just not do it," Mayhew said.
As for a contract extension with Levy, Mayhew said negotiations are ongoing.
"We've had some dialogue," Mayhew said. "It's ongoing."
Levy, a third-round pick in 2009, is entering the final year of a three-year, $9.75 million contract he signed in 2013.
Mayhew also said Friday the Lions would like to sign defensive tackle Haloti Ngata to an extension. Talks have not yet begun with Ngata.