Protect Jokes

Friends are like condoms: They protect you when things get hard.
The Brit, The Scot, The Irishman and the Genie
Three guys, one Irish, one English, and one Scottish are out walking along the beach together one day. They come across a lantern and a Genie pops out of it. "I will give you each one wish, that’s three wishes in total," says the Genie. The Scottish guy says, "I am a fisherman, my Dad’s a fisherman, his Dad was a fisherman and my son will be one too. I want all the oceans full of fish for all eternity." So, with a blink of the Genie’s eye "poof" the oceans were teeming with fish. The Englishman was amazed, so he said, "I want a wall around England, protecting her, so that no one will get in for all eternity." Again, with a blink of the Genie’s eye "poof" there was a huge wall around England. The Irishman asks, "I’m very curious. Please tell me more about this wall." The Genie explains, "Well, it’s about 150 feet high, 50 feet thick, protecting England so that nothing can get in or out." The Irishman says, "Please Fill it up with water."
Son: What happens when white blood cells fail to protect us from an infection?
Dad: Their effort goes in vein.
How do you come up with a secure password to protect yourself against hackers?
Just make it the last 10 digits of pi.
What do police officers do when they are on the volleyball court? They serve and protect.
My friend uses a white crow to protect his farm from other crows
He calls it a rarecrow