Lance takes Keith out to buy some bath bombs and he agrees cuz he thinks they're going to buy some explosives.

Once they get to the shop Keith looks around really confused like
"THE FUCK IS THE DYNAMITE?!" Lance carefully explains that that's not what bath bombs are and he gets really depressed and disappointed.

They find one that's shaped like a cupcake and Keith takes a bite before spitting it out on to the floor yelling "WHAT TYPE OF SICK JOKE IS THIS?!"

Lance finally has enough and buys some before taking Keith to Hot Topic