Caught Off Guard

Sometime around Halloween, this spider appeared. It looks real, right? Well, thankfully, it's plastic. But it still catches me off guard when I see it out of the corner of my eye.
I never know when I'll find it ... or where. My cat loves to bat it around. The kids find it and take it somewhere else. Every now and then my husband gets a kick out of moving it where he thinks it will scare me. And while it never actually scares me, it makes me pause a moment and evaluate the situation before moving my hand any closer.
To make matters even more fun, I discovered that there's actually two of them.

While a plastic spider isn't all that big of a deal--and I will probably get tired of the game and throw it (them) away soon--it still makes you think. Do other things make us stop and pause and re-evaluate the situation before we stick our hand any closer?
Shouldn't we be on the lookout for things far worse than a spider--real or otherwise?
Every now and then, I'll be chatting with friends, completely comfortable, and then the subject matter hits me hard. We're not just talking. We're verging on gossip.
Or any other little thing like that. Something that creeps up acting all innocent and then you think about it later and realize it wasn't as pure as you thought.
Yeah. Sin is like that. It wants to pretend to be like a plastic spider, more fun than harmful. But in reality, it's the kind that bites and spreads poison.
So, let's treat everything like a spider. When you see something that has even a hint of badness out of the corner of your eye or any other way, pause. Think about it and evaluate the whole situation. If it's plastic, proceed with caution. But if it's not ... kill the sucker!
Do you get caught off guard by toys ... or worse? What are some tips you've come up with to help you keep your guard up toward sin?