Dutch joke (I included a translation).

Marc: "Iedere keer als ik naar bed ga, denk ik dat er iemand onder zit. Ik ben bang. Ben ik gek of...?"
Dokter: "Kom een jaar lang in behandeling bij mij, 3 keer per week, en we zullen er wel in slagen om die angsten te bedwingen."
Marc: "Hoeveel rekent u daarvoor aan?"
Dokter: "50 euro per bezoek."
Marc: "Ik zal erover nadenken"
Maanden later belt de dokter: "Wel Marc, waarom ben je nooit meer langsgekomen?"
Marc: "Dirk genas me voor 10 euro."
Dokter: "Is dat zo? En hoe heeft hij dat gedaan, als ik vragen mag?"
Marc: "Hij zei me dat ik de poten van mijn bed moest zagen! En nu kan er niemand meer onder!"

Marc: "When I go to bed, I always feel that there is someone hiding underneath. Whew, I'm terrified. Can you help me?"
Doctor: "I would advise a year-long treatment - simply come by my office three times a week and I'll help you work through your fears."
Marc: "How much do you charge?"
Doctor: "50 euro per visit."
Marc: "Hmm...I will have to think about this. I'll be in touch."
Months later, the Doctor hasn't seen any sign of Marc in his office for treatment, so he gives him a call: "Well, Marc, why don't you come by anymore?"
Marc: "I went to go see Dr. Dirk. He cured me for only 10 euro."
Doctor: Is that so? How did he accomplish that, if you don't mind me asking?
Marc: "He told me to saw off the legs of my bed... a simple fix! No one can hide under it anymore..."