To LIGHT A FIRE UNDER SOMEONE means to stimulate that person (or organization) 让某人（或某组织）行动起来
eg. Minister for Finance Michael Noonan should “light a fire” under the banks and the Central Bank to deal properly with distressed mortgages.
To do something quickly. To handle someone or something WITH KID GLOVES means to treat him or her delicately and cautiously. 审慎周到而小心谨慎地
eg. We had better handle our future with kid gloves.